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LightSources and our affiliated companies represent the leading high-tech designers and light bulb manufacturers in the lamp industry today.

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UV Purification of Water with Cost Effective Solutions

May 16, 2025 by John Andros in Germicidal Lamps

UV Purification of Water by UV Rays Effective and Safe

UV purification of water is used in many applications around the globe and is proven to be extremely effective at providing safe and healthy water for human and animal consumption.  Ultraviolet (UV) technology disinfects water from harmful bacteria and pathogens by exposing the water to a powerful UV wavelength of 254 nanometers (nm).

UV energy at 254nm is absorbed by the DNA membrane of harmful bacteria, fungi, and organisms, rendering it harmless and incapable of reproducing, which eradicates any potential dangers from the water.

Types of UV Lamps Used for Water Purification

The most common type of UVC germicidal lamp used for a UV water purification system is a low-pressure mercury and rare gas discharge UV lamp.  UVC germicidal lamps do not have a phosphor coating on the wall of the lamp like the typical fluorescent lamps.  The body of the lamp is filled with either pure Argon or a mix of gases including Mercury, Argon, Krypton, Neon, Xenon, or others depending on the application.

Purification of water by UV rays can be accomplished with a few different lamp styles, including Low-Pressure UVC lamps (LPUV), Low-Pressure Amalgam lamps, and Medium-Pressure high-powered lamps.   UV lamps can be made of Quartz, Quartz, and Titanium or soft glass.

These various lamps generate UV radiation at 185nm to 254nm for effective elimination of volatile organic compounds (VOCs).  UV radiation at 185nm generates ozone, or active oxygen, which is effective in killing almost any form of harmful virus, while 254nm is a powerful disinfectant.

UV Water Purification System Applications

UV Purification of Drinking Water  

Approximately ninety percent of the US population depends upon public drinking water systems for safe and clean water.  Bacteria and organisms in water are completely eradicated by UV radiation, and they do not build up a resistance to UV light.  UV radiation is proven to be a very safe method of water purification as it leaves no byproducts, does not change the pH balance of the water, and leaves no taste or odor.

Aquaculture Benefits from UV Purification

Aquaculture, including aquariums, fish hatcheries, rearing farms, and international shipping companies using oceanic ballast water, benefit from UV radiation.  Maintaining water quality without the use of chemicals is vital for the health of marine life.

UV systems for treating ships’ ballast water eradicate harmful oceanic microorganisms and prevent them from wreaking havoc by invading foreign seaports around the world.   Foreign invasion of sea creatures, bacteria, and viruses is known as one of the greatest threats to our world oceans, and UV purification of ships’ ballast water is an important contribution to the preservation of our global oceans and seas.

UV Purification of Wastewater

Water discharged by residences, businesses, and agriculture is known as wastewater and is contaminated with waste and bacteria.  UV purification of wastewater is effective for purifying wastewater, and can even kill pathogens that do not respond to chemical disinfection.

UV water purification systems are used in wastewater treatment plants by municipalities across the US, meeting all federal and state public safety standards for environmental protection.

Life Sciences

UV radiation is crucial to Life Sciences, including bio-engineering, biotechnology, medical and genetic testing, nanotechnology, food sciences, and pharmacology.  UV purification of water in these industries meets the strict requirements of the US Pharmacopeial Convention (USP), which is a nonprofit organization setting standards for the scientific industry regarding the quality and purity of medicines, food ingredients, and manufactured dietary supplements.

LightSources Provides Proven UV Water Purification Solutions

LightSources is a leading global supplier of LP UV and Amalgam lamps, MPUV lamps, and quartz sleeves with electronic ballasts, standard or custom fit for your UV water purification system.  Our proprietary Amalgam lamps provide three times the UVC output when compared to other standard lamps of the same size.

LightSources can adjust the level of gases to achieve the most optimum range of nm to meet your unique needs.  Our LP lamps produce UVC output consistently over broad temperatures ranging from 4°C to 48°C.  Custom designs can accommodate higher temperatures if required.

LightSources produces MPUV lamps that generate powerful UV radiation effective for various applications of UV water and air purification.

LightSources Vast Resources Allow Cost-Effective Solutions

We employ highly skilled engineers dedicated to discovering and improving innovative technologies to capture and enhance the powerful wavelengths of UV light.   By using that technology to create cost-efficient lighting products we are contributing to the overall health of our entire planet by providing safe and healthy drinking water and preserving our natural resources.

The LightSources group is a leading global supplier of the most effective UV water purification and air disinfection systems, with experience in all aspects of UV radiation technology.  Our resources, experience, and large capacity allow us to provide this technology to you with the most cost-effective solutions.

LightSources and our affiliated companies represent the leading high-tech designers and manufacturers in the lamp industry today.  Our products are used worldwide in a multitude of applications and industries such as our UV germicidal lamps that offer patent-protected, OEM-oriented solutions.  Contact us to learn more about our large selection of specialty custom and standard UV lamps for UV purification of water and air.

May 16, 2025 /John Andros
GERMICIDAL LAMPS, uv germicidal lamps, Water Applications
Germicidal Lamps

Mercury Lamps Proven Effective and Cost Efficient

May 14, 2025 by John Andros in Germicidal Lamps

Mercury lamps use vaporized mercury and an electric arc to produce light, usually in an outer lamp that is coated with phosphor.  The phosphor coating helps to offset the bluish-green tint created from the mercury vapor, which can be an unflattering light in public places.  The phosphor coating helps to emit a white light which is pleasing in public settings such as overhead lighting in large venues and arenas.

LightSources and LightTech Develop Powerful Mercury Lamps

Mercury lamps are proven more energy efficient that fluorescent and incandescent lighting, with long lasting lamp life.  LightSources and our strategic European Partner, LightTech, have developed proprietary low-pressure mercury lamps (LP Hg lamp), providing highly effective and efficient ultraviolet energy in a short wavelength. Our LP Hg lamps convert 40% of electrical energy into effective UVC radiation used in several germicidal applications.

Proprietary Long-Life™ Technology

LightSources and LightTech extend the life of our already efficient mercury lamps with a Long-Life technology coating application, extending operating life and realizing up to 80% end-of-life UVC output. These specialty mercury lamps do not lose their effectiveness even towards the end of the operating useful life.

Various Models of Mercury Lamps

LightSources offers various solutions to customers using innovative technologies.  Our low-pressure mercury lamps include quartz and soft glass, ozone generating or ozone free lamps, high output or standard output, low-pressure amalgam lamps and specialty lamps developed specific to your custom product. Our highly skilled engineers work closely with OEMs large and small to develop proprietary lamp applications improving performance and brand awareness. Whether used for germicidal purposes in water or air, ultraviolet (UV) curing processes, medicinal disinfecting purposes, health benefits for skin or mood, or even proprietary tanning lamps, LightSources offers high performance lamp products providing cost-effective solutions.

Quartz Glass and Soft Glass Lamp Products

As the name implies, soft glass is softer than quartz, with quartz providing some added strength against breakage.  Quartz is also more resistant to solarization.  Solarization is a phenomenon that occurs when optical components are exposed to UV radiation which alters their ability to transmit UV light. Manufacturers of UV light must understand how solarization affects various lamps and components which include the outer glass, phosphor coatings and the filters.   The LightSources Group employs technical design engineers knowledgeable in all aspects of UV radiation, conducting continual research and development resulting in several patented and proprietary products.

Soft Glass

Our soft glass low-pressure mercury lamps can operate on lower currents between 180-425mA, with germicidal efficiency of 30%.  Our soft glass lamps are ozone free and available in either standard output or high output.

Quartz

The LightSources Group designs quartz glass lamps that are available in either ozone generating or ozone free solutions, and emit highly effective UVC radiation at 253.7nm.  Available in either standard or high output, these mercury vapor lamps offer a variety of germicidal solutions.

Ozone Generating Lamps

Ozone (O3) is an unstable form of oxygen with one extra oxygen atom instead of the 2 atoms as in the atmosphere we breathe (O2).   The third extra oxygen atom is loosely bonded and is the key to ozone’s effective oxidizing power, eliminating contaminants more effectively than chlorination.  Ozone is a powerful disinfectant, destroying viruses, bacteria, microbial organisms and even eliminating odors. LightSources offers two varieties of ozone-generating lamps in High Output (“H”), and Very High output (“VH”).

Ozone Free Lamps

Ozone free lamps use a wavelength of an effective 254nm, which can also be used for ozone destruction.  Our ozone free lamps are designed with doped quartz glass.

Standard Output Mercury Vapor Lamps

LightSources offers a low-pressure UVC mercury lamp in both standard and high-output models.  Each lamp has a ‘cold spot’ where drops of mercury accumulate, and are then heated to the optimum temperature to produce maximum UVC output.

High-Output Mercury Lamps

High-output mercury lamps operate at a higher electrical wattage than the standard output, 600-800mA vs 425mA, and carry higher electrical loads.  Our high-output (HO) mercury lamps use filaments that yield up to two-thirds more UVC output with cold spot technology. The area on the lamp wall with the lowest temperature is the cold spot where mercury condenses.  Cold spot technology refers to the condensation of mercury on this area, while the temperature is the defining factor for the level of pressure emitted by the mercury vapor directly impacting the luminous flux, which is the measurement of the energy of light emitted in all directions per second, referred to as lumens. Standard UVC mercury lamps are used in applications where the exposure time can be longer with low flow rates, while HO UVC mercury lamps are ideal in situations requiring higher flow rates.

Low-Pressure Amalgam Lamps

Amalgam technology enhances the UVC output of standard fluorescent lighting.  The performance of fluorescent tubes and compact fluorescent lighting (CFL) are greatly affected by high temperatures which deteriorate light and color output as the mercury vapor pressure depends upon temperature. Amalgam lamps control the mercury vapor pressure with amalgam pellet technology rather than cold spot technology.  The amalgam method yields up to three times the UVC output, ideal in germicidal applications requiring a wider range of temperatures, although they take longer to warm up than standard fluorescent lighting to reach their maximum light output. LightSources offers various amalgam lamp technologies for a multitude of lighting applications including UVC germicidal purposes.

Specialty Custom Lamps

The LightSources Group offers standard, custom and specialty lighting solutions for any OEM lighting or germicidal application, including specialty lamps such as Quartz U-Lamps, Compact Lamps, Soft Glass Compact and Quartz Germipak Cell Lamps.  Our skilled engineers will custom design and match proprietary bulbs to your equipment and application.

The LightSources Group is a leading global manufacturer of lighting solutions used in a multitude of applications in several different industries.   We assist OEMs worldwide with high performance, long lasting patented and proprietary lamps used in various UV technologies.  Contact us today to speak with one of our lighting experts for proven UV solutions in all fluorescent, UV, UVC and low-pressure mercury lamps. 

May 14, 2025 /John Andros
GERMICIDAL LAMPS, Specialty Fluorescent Lamps, specialty light bulbs
Germicidal Lamps

Ultraviolet Light Bulb Solutions for Any Application

March 31, 2025 by John Andros in Germicidal Lamps

Ultraviolet light bulb technology provides solutions to a wide variety of applications, used in many commercial, industrial and governmental processes around the world.  Ultraviolet lighting technology is used in a multitude of applications, including:

  • UVC Germicidal Applications – Ultraviolet rays delivered at very short wavelengths deliver powerful disinfection properties for eliminating bacteria and microorganisms.  UVC technology is used worldwide in water disinfection applications such as wastewater treatment plants in local municipalities and the shipping trades for the disinfection of ballast water in ships traveling in international waters.  UVC provides effective disinfection in air disinfection and food purification systems, utilized in public areas, restaurants and grocery stores.

  • Medical Industry – Ultraviolet light bulb technology is used in the medical industry, providing powerful disinfection to manufacturers of disinfected supplies, and used to purify the air in hospitals and doctor offices for the benefit of those suffering with asthma or lung disease.

  • Tanning industry – UV lamps are critical in the tanning industry as your tanning bed is only as good as your ultraviolet light bulbs.  Salon professionals benefit from learning about the technology available for long lasting, high performing and cost effective tanning lamp solutions.

  • Phototherapy – Ultraviolet light bulbs provide phototherapy to patients who benefit from UV technology to improve skin disorders and elevate the mood in those suffering from depression and seasonal affective disorders.

  • UV Curing –  Ultraviolet technology is used in curing processes by manufacturers and OEMs around the globe to instantly dry inks, coatings and adhesives much faster than other drying methods with higher quality results.  UV curing is proven cost effective in a multitude of industrial and commercial processes worldwide, including bottle treating, screen printing, and secondary applications on various manufactured components.

LightSources along with our European partner, LightTech, is committed to investing in R&D, with large divisions on both continents that are dedicated to developing innovative UV lighting solutions with eco-friendly, green practices.  We provide quick turn-around time for JIT delivery in soft glass & quartz glass products.

LightSources Provides Advanced Ultraviolet Light Bulb Solutions

UVC Germicidal Lamps – LightSources has developed superior UVC germicidal lamps that are proven effective over other methods for disinfecting viruses, bacteria and fungi.  LightSources and LightTech provide unmatched resources in delivering a vast selection of high-quality standard products and knowledgeable engineers to custom design UVC germicidal solutions for any application.

Amalgam Lamps – The LightSources group has developed cutting-edge technology in high-performing spot & pellet amalgam UVC light bulbs.  Patented amalgam pellet technology provides superior efficiency and quick ROI with less maintenance and replacement costs.  Our high-performing proprietary products deliver UVC output with 60% & 80% dimming operation modes, reducing energy requirements while producing higher UVC intensity when compared to standard lamps of the same size.  One of our patented technologies, LongLife+™, is a coating applied to all our amalgam lamps, increasing the UVC output up to three times that of a standard lamp.

Specialty UV lamps – Our valued partner, LCD Lighting, offers specialty fluorescent lighting solutions in a wide selection of standard lamps, with custom-designed options available.  LCD Lighting is a global leader in designing and manufacturing T2, T4, T5, T8, and T12 fluorescent lamps, in addition to HCFL-aperture and reflectors, CCFL Sub-minis, compact fluorescent, and aquarium lighting solutions.  Following the philosophy of the LightSources group, LCDL provides customized solutions for all lighting products.

Eco-Friendly UV Low-Mercury Lamps –   Our vast resources allow us to invest in eco-friendly technology to delivery long-lasting, high-performing light bulbs that use far less energy than comparable models from other suppliers.  LightSources leads the industry with cutting-edge technology developed with environmentally friendly practices that also deliver energy-efficient solutions.

Low Pressure Fluorescent, High-Pressure Facial Tanning Lamps, and Dual and Triple-Phosphor Tanning Lamps – LightSources partners with our clients, educating salon professionals on the most innovative ultraviolet light bulb technology available in tanning lamps such as our SolGlass™ technology that delivers instant gratification with narrow-band UVA rays, combined with short wave UVB for long lasting pigmentation. We offer multitude of cutting edge tanning technology such as: A-Power™, Multitone™, Peak2®, twist/swirl & proprietary bases.  Custom solutions allow for enhancing your own brand awareness, increasing your market share.

LightSources Partners with OEMs Large and Small

The lighting specialists at LightSources partner with our customers from prototype through finished product, including assistance with obtaining your own patented product for your custom designed solution.

Our state-of-the-art glass factory in Europe is a modern facility with large capacity to meet the needs of the most demanding OEMs in various industries.  We supply commercial, industrial, private, public and government operations with the highest of quality in ultraviolet light bulb solutions, developed for long life to save you money, with quick turn around on standard or custom designed solutions.

LightSources and our valued partner companies – LightTech, Cerlux, LCD Lighting, and Voltarc represent the leading high-tech manufacturers and designers in the lamp industry today. Our standard lamps and components as well as customized products offer lighting solutions to meet our partner’s unique needs.  Contact us to learn more about our vast selection of lamps and proprietary lighting solutions.

March 31, 2025 /John Andros
GERMICIDAL LAMPS, UV Curing, Specialty Lamp Applications
Germicidal Lamps

Are You Looking for a Quartz Lamp Supplier?

March 28, 2025 by John Andros in Germicidal Lamps

If you’re looking for a quality supplier of quartz lamp products and components, the LightSources group offers proven solutions for any lighting application.  Our valued partner LightTech, along with LCD Lighting, Voltarc and Cerlux provide the best in class lamps for a multitude of industries.  We recognize the importance of quality products, delivered on time and to your specification.

The LightSources group provides quick turn-around to OEMs large and small with specialty lamps and lighting technologies, meeting strict delivery requirements with our vast resources.  With a presence in Europe including a state-of-the-art glass factory, a location in China, and wide resources from our partner companies across the United States, we deliver cost efficient lighting solutions to companies worldwide.

Quartz Lamp Suppliers for Any Application

While there are many light bulb suppliers claiming to have the products you need, only the LightSources group is recognized for providing a wide range of lighting technologies meeting critical and demanding applications.  Our experienced lighting engineers provide custom designed solutions in UV germicidal lamps, tanning lamps and a variety of quartz lamp technologies.

Our quartz lighting solutions are available in ozone generating or ozone free technologies, in either standard or high output models.  Our mercury vapor lamps offer various UV germicidal technologies at 253.7 nanometer (nm), which is most effective at eradicating bacteria, viruses and contaminants.

Quartz is stronger than glass or soft glass, providing added strength and protection against breaking.    Quartz is also known to be more resistant to solarization, which occurs when UV radiation alters the ability of optical and lamp components to transmit UV light.   Quartz lamps allow for maximum UV transmission with little absorption.  Quartz provides long lasting performance, maintaining quality output throughout a longer product life cycle.

Quartz halogen lamps are an incandescent light bulb that is enveloped in quartz rather than glass, with the filament surrounded by a halogen gas, usually iodine.  Quartz iodine lamps contain a tungsten filament with the bulb that also contains iodine.  When this reacts with the vaporized tungsten it will prevent blackening of the bulb, and produce an intense light used in applications such as car headlights.

Quartz will remain cooler than glass, providing more transparency and versatility in applications, while transmitting the maximum amount of UV radiation.   Quartz lighting technologies developed by the LightSources group produce higher luminous efficacy with maximum operating life.  Our standard and custom designed solutions will fit any application, with patented products developed with proprietary technologies.

The design and engineering team at the LightSources group understands the technology behind the products, offering specialized design consultations and assistance with developing your own patented products.

Vast Resources from Lighting Solutions Partners

LCD Lighting Provides Innovative Solutions

LCD Lighting is a recognized leader in the industry of light bulb manufacturing, providing lighting solutions for critical aircraft display applications, illuminating cockpits in Boeing aircraft and the NASA space shuttle.   LCDL is a valued partner to the LightSources group, known as an innovative manufacturer of fluorescent and miniature lighting solutions for virtually any lighting application.

Cerlux Offers Custom Designed Lamp Products

Cerlux is a valued member of the LightSources team, offering OEMs and businesses of any size custom designed products to raise your own brand awareness.  Custom design your fluorescent, UV germicidal and quartz lamps with unique custom colors in lamp bases, sockets and components.  Cerlux manufactures high quality ceramic bases and electric insulators, washers, tips, resistant grinding cylinders and many more state-of-the-art lamp components.

Cerlux performs specialty ceramic processes, firing at extremely high temperatures at 1,000°C.   Cerlux is an innovative manufacturer, recycling the heat produced from the high temperature kilns to heat their facilities and water supplies to conserve energy.   Cerlux provides custom glazing options to match your unique color scheme, providing endless options with long-lasting components offering scratch resistant, durable products.

Voltarc

Voltarc is a world leading producer of lighted signs with fluorescent and neon tube signs, long lamps and U-lamps, and proprietary technology such as TriLight Max fluorescent signs.  Voltarc is a valuable addition to the LightSources group, known for innovative and specialty UV curing lamps, quartz lamps, electrical wiring devices, lampholders and fluorescent lamps.

LightSources and its affiliated companies bring together the most innovative suppliers in the lighting industry, working together to provide advanced technologies with all types of lamps and specialty lamp components.  We provide quick turn-around with rapid prototyping of any type of lamp product including quartz glass and soft glass products.

LightSources, LightTech and affiliated companies LCD Lighting, Voltarc and Cerlux, represent the leading high-tech designers and manufacturers in the lamp industry today.  Our products are used worldwide and are found in a multitude of applications and industries such as our UV germicidal lamps that offer patent-protected, OEM-oriented solutions. 

March 28, 2025 /John Andros
GERMICIDAL LAMPS, Specialty Fluorescent Lamps, Specialty Lamp Products
Germicidal Lamps

Quality Lamps Enhance Benefits of UV Air Purifier Systems

December 30, 2024 by John Andros in Germicidal Lamps

Originally posted at: https://www.light-sources.com/blog/quality-lamps-enhance-benefits-of-uv-air-purifier-systems/

UV air purifier systems are highly effective at disinfecting and purifying the air, proven to eradicate bacteria, viruses, parasites, fungi, spores, dust mites, and many other contaminants and volatile organic compounds (VOCs).  UVC lamps generate UV radiation at 254 nanometer (nm) which is required to penetrate the nucleic acid of the harmful cells, altering the DNA to render it harmless and unable to reproduce. UV radiation emitted at 185nm generates ozone which effectively removes odors from the air.

UV air purification systems are proven to be very effective at providing clean and healthy air and offer many benefits across a multitude of applications worldwide.  

UV Air Purifiers Improve Health in Many Environments

UV air purifiers are used in many environments and commercial applications to improve the health and well-being of residents and visitors.  UV germicidal lamps are commonly used in HVAC systems in public settings such businesses, hospitals, schools, labs and are also available for residential use to provide clean and healthy air to homeowners.  UV air purification promotes the health of employees when used in commercial settings, improving productivity and reducing downtime associated with airborne illnesses.  

Clean air is especially important to patients in hospitals and medical facilities as these individuals may already have a compromised immune system.  Medical facilities and scientific labs must also have clean air free from germs and live organisms. Schools can be a breeding ground for the spread of germs and illnesses.  Utilizing UV air purification in schools and campuses can drastically cut down on the spread of germs and diseases, decreasing student and faculty illnesses.

Benefits of UV Air Purifier Systems

UV air purifier systems provide many benefits over other methods of air purification.  These benefits can be quite significant and include the following:

  • Quick results – UV air purification systems effectively kill harmful contaminants in just a few seconds of exposure

  • Easy to Operate – UV air purifiers are very simple to maintain as there is no need to purchase, store, or dispose of any chemicals

  • Low Maintenance – Very little if any maintenance is required other than changing a bulb and keeping your system clean

  • Safe to Operate – UV air purification systems are safe to operate.  While contaminants are eradicated at the optimum wavelength, UV germicidal lamps are completely safe for human exposure

  • Affordable and Cost-Effective – High-quality UVC germicidal lamps offer the most value with long-lasting high performance providing highly cost-effective air purification solutions

UV air purification provides these advantages and many others.  With fast and effective results, ease of use and maintaining and affordable options with long lasting high-quality lamps, UV germicidal lamps provide unsurpassed performance and value.  

Working with an experienced UV lamp manufacturer will ensure that you receive the most effective UVC germicidal solution.  Quality lamps are the key to any successful UV germicidal application.

LightSources Offers High-Quality UV Air Purifier Lamps and Accessories

LightSources and our strategic European partner, LightTech, offer high-quality UV air purifier lamps and accessories proven to provide long-lasting, high-performance.  We design, engineer and manufacture UV C germicidal lamps used in disinfection and purification systems around the world.  Most of our UV germicidal lamps are Low and Medium Pressure Mercury Discharge lamps.

Our Low-Pressure UVC lamps are similar in operation and construction to standard fluorescent lamps although our germicidal lamps are made with quartz or soda-lime glass and do not include the phosphate coating of fluorescent lamps which allows for more UVC radiation to pass through.  

Low-pressure amalgam lamps are ideal in situations requiring long-term germicidal applications, especially in environments with fluctuations in ambient temperature. The Medium Pressure Mercury Discharge lamps are similar to the High-Intensity Discharge lamps, as they emit a broadband UV emission rather than a narrow band.

Advantages of UVC Germicidal Lamps from LightSources

The LightSources Group offers many advantages including decades of experience, expertise in lighting technology, and vast global resources which allow us to provide quality products and on-time delivery.  We provide standard or customized lamp solutions developed in our modern, state-of-the-art glass factory. LightSources conducts continual research and development to provide high-performing, energy-efficient lamps and lighting solutions.

High Output UV C quartz germicidal lamps from LightSources provide nearly double the UVC radiation when compared to standard germicidal lamps in similar ambient temperatures.  Our standard quartz germicidal lamps warm up fast in only 30 to 60 seconds and convert electricity up to 40% into UVC radiation. LightSources offers patented spot amalgam technology with robust designed filaments which withstand operating on higher currents.

UVC germicidal lamps are proven to be safe and effective, eliminating harmful bacteria, viruses and microorganisms from air, water and surfaces.  UV air purifier systems provide clean and healthy air in homes and businesses around the world.

December 30, 2024 /John Andros
GERMICIDAL LAMPS, UV air purification, uv germicidal lamps
Germicidal Lamps

UV Water Purifier Using UVC Radiation

December 27, 2024 by John Andros in Germicidal Lamps

Originally posted at: https://www.light-sources.com/blog/uv-water-purifier/

A UV water purifier is an extremely effective and cost-efficient method of purifying and disinfecting water for various applications.  UVC radiation is used in UV water disinfection systems worldwide, proven effective at cleaning and purifying water in various forms.  Light is broken into colors and measured by wavelengths in nanometers (nm).

Ultraviolet (UV) light has shorter wavelengths than visible light measuring in the range of 10nm to 400nm, with the most effective UVC germicidal radiation occurring between 100nm to 280nm. UVC technology is used in UV water purification systems around the world to deliver a safe and highly effective method of cleansing water for numerous purposes.  

UV radiation targets the nucleic acid of the cells in bacteria, viruses, and microorganisms naked to the human eye, altering the DNA of these cells and rendering harmful contaminants completely harmless.  As the cells are destroyed, these microorganisms are unable to replicate which renders them dead as they cannot reproduce to infectious levels.

UV Water Purifier Applications  

A UV water purifier provides effective and cost-efficient water purification for a multitude of applications worldwide.  UVC germicidal technology offers technologically advanced, effective, and cost-efficient germicidal solutions for the following water applications:

  • Aquaculture

  • Drinking water

  • Life Sciences

  • Pool and Spa

  • Wastewater

  • Water Reclamation

  • and many others  

Aqua Culture Benefits from Water Purifier Systems

UV water purifier systems offer valuable disinfection services to marine life in aquariums and hatcheries, providing safe water for fish to thrive free from dangerous bacteria and contaminants.  UVC germicidal lamps purify water with the optimum wavelength of 254nm, which effectively destroys viruses, bacteria, and harmful contaminants. UV water purification is also effective at destroying harmful contaminants and parasites such as the myxozoan parasite, preventing disease in fish in both saltwater and freshwater applications. The high-output quartz germicidal lamps and low-pressure amalgam lamps by LightSources enhance the life and well-being of fish and marine life, with the most effective and cost-efficient UV aqua culture solutions available today.

UV Water Purifier Provides Safe Drinking Water

UV radiation is utilized in municipalities to disinfect drinking water, enhancing the health and well-being of people across many populations.  UVC lamps effectively reduce chloramines and chloride in water, oxidizing water without the use of harmful by-products. Ozone-producing lamps at 185nm effectively kill virtually any virus form, while UV radiation at 254nm disinfects water by targeting cells’ DNA to eradicate any ability to reproduce. UVC lamps used in water purification systems offer many benefits over the use of chemical disinfectants.  Benefits of UV radiation for drinking water include:

  • Eradicates harmful organisms instantly including those resistant to chemical disinfection such as cryptosporidium and giardia bacterium

  • Organisms do not develop a resistance to UV radiation

  • Effective with short radiation time

  • Minimal maintenance

  • No need to purchase, store, or dispose of chemicals

  • Low operating costs

  • Environmentally friendly

  • It does not alter pH balance, odor, or taste

LightSources offers low-pressure standard quartz germicidal lamps and low-pressure high-output germicidal lamps to purify drinking water systems around the world.

Life Sciences Enhanced with UV Water Purifier

Water used in the medical industry including biotechnology and pharmaceuticals requires water purified to a mandated level to maintain clean water free from contaminants.  UV water purifiers are used in biotechnology, pharmacology, nanotechnology, genetic and medical testing, bioengineering, and medical device laboratories. The LightSources Group manufactures high-output lamps at 800mA and standard lamps at 425mA utilized in life science applications worldwide.  

Pool & Spa Water Purification

UV germicidal lamps are used to treat pool and spa water, with ozone-producing germicidal lamps purifying water 3,000 times quicker than chlorine, with no harmful chemical residue.

UV Wastewater Treatment Systems

Wastewater is defined as water that has been affected in quality by the influence of humans including varying contaminants when discharged from commercial properties, agricultural applications, and domestic residences. UVC water purifier systems effectively treat wastewater instead of chemical disinfectants to enhance public safety while meeting all federal and local strict water purification standards.

Water Reclamation with UV Water Purifiers

Water reclamation is a critical component of any water management system by eradicating pollutants from ecosystems and eliminating contaminants flowing into natural bodies of water.  Water reclamation purifies water to be recycled for other uses such as cooling power plants, mixing concrete or agricultural irrigation. Greenhouse water systems benefit from UVC germicidal technology, keeping plants healthy with clean water.   

LightSources Offers Effective and Cost-Efficient UV Water Purifier Systems

LightSources and our valued partner, LightTech, provide high-performing, industry-leading lighting solutions that deliver energy-efficient cost savings over comparable lamps.  We are dedicated to continual improvement through research and development, consistently offering cutting-edge, industry-leading UV lamp technology with high-performing patented products. Our vast resources allow us to provide timely delivery with high-quality products, supporting OEMs worldwide with UVC germicidal solutions.

LightSources and our valued partner companies represent the leading high-tech lamp designers in the industry.  Contact us today to speak with an engineer to learn more about our UVC germicidal solutions including our powerful lamps for UV water purifier systems.

December 27, 2024 /John Andros
GERMICIDAL LAMPS, uv germicidal lamps, UVC GERMICIDAL LAMPS
Germicidal Lamps

How Does a UV Germ Light Work?

November 29, 2024 by John Andros in Germicidal Lamps

Originally posted at: https://www.light-sources.com/blog/how-does-uv-germ-light-work/

If you’ve heard of a UV germ light and wondered just how effective it really is and how it works, read more to learn how a UV germicidal lamp really works.  Ultraviolet (UV) radiation is measured by wavelengths, referred to as nanometers (nm). Ultraviolet light is broken into UVA, UVB and UVC rays, based on how long the wavelengths are.  

UVA rays are found between 315nm and 400nm, UVB rays are between 280nm to 315nm, and UVC rays are shorter wavelengths measuring between 200nm to 280nm, with the most effective germicidal action found at precisely 254nm.   UV germ lights in the range of 254nm are proven to be highly effective in purification and disinfection applications, eradicating bacteria and viruses in the air, water and even on surfaces.  UVC radiation works by instantly altering the DNA of the organisms by penetrating the cells quickly within seconds of exposure. This instant exposure to UVC light renders these living cells completely harmless as they are unable to replicate.  

Short wave UVC light is the most effective type of UV radiation to damage cells and is filtered by the atmosphere, never reaching the Earth’s surface. Shorter wave UVC light at 185nm is used in UVC ozone-generating germicidal lamps, which is powerful UV radiation that actually eliminates odors in the air caused by volatile organic compounds (VOCs) such as sulfides, mercaptans, and ammonia. By penetrating the nucleic acid of the cells, they are unable to multiply or reproduce to infectious numbers, leaving them to be considered dead and inactive.  UVC light in the short wave of 185nm decompresses oxygen, O², and produces ozone, O³.  Ozone is a powerful oxidizer that destroys microorganisms within seconds of exposure.

Many Benefits of UV Germ Light Technology

There are many benefits provided by using UV germ lights instead of other disinfection methods.  UVC germicidal lamps comply with strict environmental codes and regulations, as it is completely free of chemicals and environmentally friendly.  UV germicidal lamps do not contain corrosive materials or disinfection by-products (DBPs). UV radiation is a safer technology without any hazardous side effects, providing a safe work environment for employees and eliminating the need to purchase, store, and dispose of harmful chemicals.  UV radiation is also very cost-effective, especially when using the right type of lamp designed for energy efficiency and long-lasting high performance. UV disinfection systems provide ongoing cost savings with minimal maintenance required. UV water and air purification systems are powerful, effective, and cost-efficient.

LightSources Offers Powerful UV Germ Lights for High Performance

LightSources and our valued partner, LightTech in Europe, offer powerful UV germ lights that deliver long lasting, high performance. With our vast resources, we offer patented technology in first to market UV germicidal systems which deliver the most powerful UV radiation available, in safe and cost effective UV germ lights.  

Low-Pressure Amalgam UV Germ Light

We offer Low Pressure Amalgam lamps which improve the stability of applications with ambient temperature fluctuations.  Our patented pellet and spot amalgam technology utilizes filaments specifically engineered to withstand high current operations. LightSources applies our patented LongLife+™ technology with a proprietary coating that eliminates accelerated depreciation commonly associated with high-intensity lamps.  Our proprietary technology allows for an extended operating life of up to 16,000 hours while maintaining end-of-life UVC output of up to 85%.

Low-Pressure Mercury UV Germ Lamps

LightSources offers low-pressure mercury UV germicidal lamps for a wide range of disinfection solutions.  We offer soft glass or quartz glass, ozone-generating, and ozone-free lamps in standard or high output types.  Our soft glass, low-pressure germicidal lamps can operate on lower currents in the range of 180 to 425mA, in either standard or high output styles with germicidal efficiency of 30%.   Quartz glass lamps are designed to transmit maximum UVC radiation with levels at or above 90%, at a precision of 253.7nm for maximum germ-killing effectiveness.  Also available in either standard or high output, and ozone-generating or ozone-free specifications. Quartz glass lamps provide additional durability over soft glass and are less susceptible to breaking.

High Output UVC Germ Lamps

LightSources offers standard and high-output UVC lamps that use mercury vapor to produce the UVC light.  The mercury vapor collects at the “cold spot” on the lamp and produce maximum UVC output when reaching peak temperatures.  High output (HO) lamps operate at higher currents and input wattage of 600mA to 800mA, rather than the lower 425mA. HO lamps contain heavier filaments to carry higher electrical currents.  The filaments provide more control to the cold spot and allow for maximum UVC output. LightSources is committed to providing the most effective lamps which deliver the highest rformance available in the most affordable and cost efficient design.  We are committed to continual improvement in all processes, offering patented products and proprietary technology designed to deliver maximum performance. Our skilled design engineers offer custom-developed lighting solutions for virtually any lamp or lighting application.  We understand the technology behind the product, designing, engineering and manufacturing high-tech lamp solutions that deliver maximum benefits.

November 29, 2024 /John Andros
GERMICIDAL LAMPS, UV germicidal lamp, UVC GERMICIDAL LAMPS
Germicidal Lamps

Where to Find the Best UV Light Air Purifier

October 30, 2024 by John Andros in Germicidal Lamps

Originally posted at: https://www.light-sources.com/blog/where-to-find-the-best-uv-light-air-purifier/

UV light air purifier systems are one of the most cost-effective and safest methods used to purify the air we breathe.  UV air purification systems are used in municipalities and industrial applications to remove harmful contaminants from the air and eliminate odors. UV light air purification helps industries in complying with strict regulations regarding air quality while offering many benefits over other air purification methods.

UV Light Air Purifier is Environmentally Friendly

UV light air purifiers are environmentally friendly as they do not require the use of harmful or toxic chemicals, yet they are extremely effective at disinfecting and purifying the air.  Since UV air purifiers operate without the use of chemicals, there is no need to purchase, store, or dispose of harmful chemicals or byproducts. In addition to clean air purification methods, UV air purifiers use energy-efficient UVC germicidal lamps, creating an even more environmentally friendly operation.  

UV light air purifiers are available in compact designs that make them simple to operate and easy to maintain.  With long-lasting UVC germicidal lamps, UV air purifiers save time and money with very little ongoing maintenance required.

UVC Radiation Offers Powerful Germicidal Effectiveness

UVC radiation is proven to quickly and effectively destroy airborne contaminants including bacteria, fungi, mold, viruses, and volatile organic compounds (VOCs).  By penetrating the nuclei of the harmful cells, UVC radiation immediately renders them harmless and unable to replicate. UV air purifiers operate with UVC germicidal lamps designed to emit specific wavelengths at 254 nanometers (nm), which is the most effective band of UVC radiation that instantly destroys the cells of harmful contaminants.

UV Light Air Purifiers Benefit Many Industrial Applications

UVC germicidal lamps help to prevent the spread of airborne illnesses in many residential and commercial settings.  UVC light air purifiers are utilized in many commercial buildings to provide safe and clean air for workers and visitors and are also becoming quite popular in more residential settings.  Healthcare facilities benefit from UV light air purifiers by providing clean air to patients who may already have a compromised immune system. Many facilities such as hospitals, doctors’ offices, nursing homes, and rehabilitation centers provide safe and clean air to patients with UV light air purification.

Many industrial applications are realizing the benefits of UV air purification to provide a safer workplace while meeting strict air quality codes and regulations.  UV air purifiers are used in many applications to eliminate toxic chemicals produced during certain applications such as plastic, rubber, or wood surfacing treatment processes.  Companies can reduce their output of harmful compounds while protecting their employees with cleaner and safer air.

UV air purification systems can be installed in new existing HVAC units to eliminate the spread of air pollutants including bacteria, viruses, parasites, dust mites, mold spores, and fungi.  UV air purifiers are easy to maintain and reduce the maintenance required to clean air ducts as the UVC radiation keeps coils clean while disinfecting the air. Make sure that you consult with a UVC germicidal specialist before purchasing your UV air purifier and UVC germicidal lamps.

LightSources Offers Custom UVC Germicidal Lamps for Air Purification

Not all UV lamps are made the same and that is especially true for UVC germicidal lamps.  To obtain the quality results you desire, it is important to be sure you are working with quality products and lamps proven to provide effective disinfection.  LightSources and LightTech offer the most effective UVC germicidal lamps available today, proven effective in a multitude of applications worldwide.

LightSources offers vast resources to provide quick turnaround on production requirements including prototype and custom-designed lamps.   We offer custom-designed lamp diameter and length, ceramic bases, and sockets customizable right down to matching your own logo colors. Our UVC germicidal lamps are used in many purification systems worldwide including air, surface, and water disinfection applications.  

LightSources helps many industries and municipalities with UVC germicidal lamps to effectively treat water in reclamation operations, wastewater treatment plants, ballast water treatment on ships, aquariums, fish hatcheries, and many other water disinfection processes.  UVC germicidal lamps help to keep food fresh and safe in grocery stores, restaurants, and other food and beverage industrial applications.

October 30, 2024 /John Andros
GERMICIDAL LAMPS, UV AIR PURIFICATION SYSTEM, uvc germicidal lamps
Germicidal Lamps

Benefits of UV Air Purifier for HVAC Systems

July 31, 2024 by John Andros in Germicidal Lamps

Originally posted at: https://www.light-sources.com/blog/benefits-of-uv-air-purifier-for-hvac-systems/

UV air purifier for HVAC systems provides many health benefits by keeping air clean, disinfected, and free from irritants, pollutants, and germs. UV air purification systems used in HVAC and AC units provide significant health benefits to people in many environments such as public buildings, hospitals, nursing homes and doctor facilities. UV air purifiers are becoming popular in residential homes as well as many people realize the benefits of cleansing the air we breathe and removing contaminants.

UV air purifiers are proven to effectively eliminate bacteria, viruses, germs, mildew, mold and even dust from the air. Breathing clean air free from these contaminants improves health and wellness in all people and is critical for people with compromised immune systems, asthma or respiratory illnesses. Eradicating these contaminants from the air provides a healthier environment and promotes continued health and wellness.

Effectiveness of UV Air Purifier for HVAC

Ultraviolet (UV) radiation is emitted in various wavelengths measured in nanometers (nm). UV light emitted specifically at 254 nm is proven to be extremely effective at killing germs, viruses and all types of bacteria. This optimum output of germ killing UV wavelength does not emit ozone, which is produced when UV radiation is in the range of 185 nm. Ozone is a proven deodorizer, removing foul odors from the air. Consult with a UV HVAC professional regarding ozone generating lamps as they may cause corrosion to copper lines in some AC units.

Properly Install UV Air Purifier in HVAC Systems

Proper installation of UV lamps in air purifier HVAC systems is important for maximum effectiveness. UV air purifier systems should be mounted on the cold air side near the cooling coil or downstream. The output should be targeted toward the cooling coil and the draining pan for condensation underneath the coils to prevent the growth of algae or mold spores. Improper installation would not be effective in eliminating germs as bacteria and mold could develop and contaminate the blower which would contaminate the entire living space. Growth of algae or mold could also clog the coils of an AC unit and cause the motor to overwork and burn out quicker than if those contaminants were eliminated. Eliminating these germs and harmful contaminants through your HVAC unit provides clean and disinfected air for improved health and wellness as well as prolonging the life of your valuable HVAC and AC equipment.

Benefits of HVAC UV Air Purification Systems

HVAC UV air purification systems provide many benefits in commercial and residential settings. Business owners realize the benefits of providing clean and healthy air to employees which improves attendance and cuts down on workplace illnesses. Daycare centers and schools help to prevent the spread of airborne illnesses among students and hospitals provide a safer environment for sick patients. Clean and healthy air is vital to all people in all environments including commercial, industrial and residential settings.

UV air purifiers in industrial settings help manufacturers to maintain a healthy work environment while meeting air emission regulations. UV air purification is proven to remove toxic chemicals and volatile organic compounds (VOCs) from the air produced by industrial operations. UV air purification is becoming more popular in residential HVAC systems, providing cleaner air in homes which benefits all residents especially people that are sick or have a compromised immune system. UV air purification provides all of these benefits as well as prolonging the life of your equipment by eliminating mold, mildew and harmful contaminants.

LightSources Offers High-Quality UV Air Purification Lamps

The LightSources Group consists of LightSources in the United States and China, LightTech in Europe and valuable partner companies which allow us to provide high-quality UV lamps which outlast and outperform comparable products. Our vast global resources and state-of-the-art glass factory in Hungary promotes our continual research and development and allows us to deliver first to market, proprietary lamps and lighting solutions. Our skilled engineers possess in-depth knowledge of UV radiation and provide custom design, engineering and manufacturing of UVC germicidal solutions.

We offer high-quality UV lamps for use in air purification systems and HVAC units which are proven effective at eliminating harmful contaminants.  Our technical team will assist you in developing custom solutions and lamps to fit any footprint in existing or new HVAC air purifiers. Our UVC germicidal lamps for air disinfection include low pressure Amalgam lamps designed with proprietary technology for longer-lasting effectiveness proven to yield up to three times more output than comparable lamps of the same length. We offer medium pressure lamps, Quartz sleeves and electronic ballasts designed to your specifications.

July 31, 2024 /John Andros
GERMICIDAL LAMPS, uv air purification systems, UVC GERMICIDAL LAMPS
Germicidal Lamps

Ozone Light Bulbs with High Quality Quartz Glass

May 31, 2024 by John Andros in Germicidal Lamps

Originally posted at: https://www.light-sources.com/blog/ozone-light-bulbs-with-high-quality-quartz-glass/

Ozone is naturally produced from ultraviolet light, with ozone light bulbs replicating the UV wavelength needed to produce ozone. When we hear the word ozone, we think of the ozone layer in the atmosphere. This ozone layer is produced from UV light, and filters most of the UV light from the sun.

UV light is emitted at a frequency that is higher than visible light, which is in the range of 400 to 700 nanometer (nm). Ultraviolet light, is beyond the highest frequency of visible light, which is violet, and is emitted from the sun within the range of 100 to 315 nm. Most of this is filtered through the ozone layer in the atmosphere.

UV light emitted in short wavelengths, between 160 and 240 nm, will produce ozone through a process called photolysis of oxygen (O2). This process disrupts the molecule to create valent oxygen atoms that attach to individual oxygen molecules and creates ozone (O3).

Ozone Provides Natural Germicidal Effectiveness

Ultraviolet radiation emitted at 254 nm is proven to deliver highly effective germicidal properties by killing germs and harmful bacteria. UV wavelengths in the range of 185 nm are effective to create ozone, which eliminates contaminants in air, water and surfaces and also acts as a natural oxidizer to eliminate foul odor in the air.

UVC Ozone Light Bulbs

Ozone light bulbs produce UV radiation at less than 220 nm, in the range of 185nm, to effectively decompress the oxygen (O2) in the air which produces ozone (O3). UVC ozone lamps also eliminate volatile organic compounds (VOCs) such as mercaptans, sulfides, and ammonia. One of the greatest advantages of ozone light is that it is carried through the air to places where direct UV exposure cannot reach.

UVC light bulbs emitting 254 nm wavelengths instantly eradicate viruses and bacteria upon exposure, combined with ozone-generating light bulbs, a UV air purification system delivers additional deodorizing properties.

LightSources Delivers UVC Ozone Lamps

LightSources is a world-leading supplier of fluorescent and UV lamps, including UVC germicidal and ozone light bulbs. We construct ozone lamps with the highest quality quartz glass and determine UV emissions with the type of fused quartz used in manufacturing germicidal lamp envelopes. UV lamps which emit radiation within the range of 100 to 280 nm provide the most effective germicidal power.

LightSources manufactures ozone lamps with Very High (VH) lamp design which is constructed with quality clear fused quartz. We offer Low (L) germicidal lamps which provide effective disinfection at 254 nm and include specially doped fused quartz to prohibit UV radiation at 185nm. Lamps constructed with clear quartz allow the uninterrupted emission of 185 nm in ozone light lamps.

You can find our VH lamps in a multitude of germicidal processes such as water disinfection applications. UVC ozone lamps are used in water disinfection applications such as pools and spas, water reclamation, municipalities, ballast water treatment, life sciences, and many other water purification processes.

Ozone lamps are also found in air purification systems in HVAC systems and many commercial, industrial, and residential air treatment systems. UVC germicidal lamps also aid surface disinfection processes used in the food and beverage industry, grocery stores, restaurants, and medical applications.

The LightSources Group Supports OEMs Large and Small

The LightSources Group is regarded as an authority and leading supplier of fluorescent and UV lamps and lighting solutions. We are committed to research and development, offering several first-to-market, patented products developed with proprietary technology. Our skilled engineers are the best in the business with an in-depth knowledge of UV radiation and custom-designed solutions with quality components and custom phosphor blends.

We manufacture Low-Pressure Mercury Discharge lamps which we construct with either soda lime glass or quartz glass to provide either 185 nm or 254 nm to allow the right UV radiation to pass through unmodified. Our Medium Pressure Mercury Discharge lamps emit broadband UV radiation as opposed to narrowband and are similar to high-intensity discharge (HID) lamps.

Whatever your germicidal application calls for, LightSources offers a wide selection of standard products as well as providing custom designed solutions to meet specific requirements. Our engineering team will design your germicidal lamps with the right amount of ozone emission with careful construction and combination of two types of quartz. We follow a strict quality policy as part of our ISO9001:2015 certification, offering vast resources and quick turnaround time for production and prototype solutions.

May 31, 2024 /John Andros
GERMICIDAL LAMPS, UV AIR PURIFICATION SYSTEM, UVC GERMICIDAL
Germicidal Lamps

Hospital UV Disinfection: Highly Effective with Automatic Solutions

April 29, 2024 by John Andros in Germicidal Lamps

Originally posted at: https://www.light-sources.com/blog/hospital-uv-disinfection-highly-effective-with-automatic-solutions/

Healthcare facilities face serious challenges with mitigating the spread of germs and are seeking enhanced methods of disinfection such as hospital UV disinfection systems. Healthcare-associated infections (HAIs) cause nearly 100,000 deaths in the U.S. annually with approximately 1 in 25 people contracting an infection from their hospital stay. HAIs cause unnecessary deaths and put patients and staff at an increased risk.

The hospital environment plays a critical role in the transmission of pathogens, as many harmful viruses and bacteria can remain on surfaces for weeks, months, and even years. Superbugs which are resistant to antibiotics such as Methicillin-resistant Staphylococcus aureus (MRSA) and Vancomycin-Resistant Enterococci (VRE) pose additional challenges to keeping patients and hospital staff safe from infection.

Challenges in Disinfecting Hospital Rooms and Surfaces

Many challenges exist in preventing the spread of infection in hospital rooms and surfaces. Disease outbreaks have been traced back to many sources such as thermometers, blood pressure cuffs, sinks, and counters in patient rooms, and computer keyboards. This puts hospital staff at risk of contracting and spreading dangerous pathogens.

Hospital staff are expected to thoroughly clean patient rooms and use disinfectants known to kill pathogens of a previously infected patient. Some chemical disinfectants may require a long exposure time to provide effective disinfection and may not even be applied to all infected surfaces. Cleaning materials themselves such as mops or cleaning cloths may also become a source of transmission, spreading harmful pathogens rather than eliminating them.

Due to these challenges facing the healthcare environment with ineffective chemical treatments and the resistance of certain pathogens, it is imperative to incorporate enhanced disinfection with hospital UV disinfection.

Enhanced Disinfection with Hospital UV Disinfection

UV disinfection in hospitals is becoming an extremely popular method of assuring protection against the spread of harmful diseases, with a high rate of efficacy. According to a study published by Cambridge University, UV disinfection systems reported >99.99% effectiveness in eliminating resistant pathogens such as:

  • Middle Eastern respiratory syndrome coronavirus (MERS-CoV) which had a reported mortality rate of approximately 36%

  • Severe acute respiratory syndrome (SARS)

  • Mouse hepatitis virus, strain A59 (MHV-A59)

UV disinfection systems provide a high rate of efficacy, although they are most effective in hospitals when used in addition to standard cleaning of hard surfaces and should never be considered a substitute for good cleaning practices.

Automatic UV Disinfection Systems for Hospitals

UV disinfection in hospitals is gaining traction due to the high rate of effectiveness and also because of the ability to automate the disinfection process. Many types of hospital UV disinfection systems are available such as:

  • Portable UVC robots and UVC light carts

  • Stationary solutions such as UVC lamps in light fixtures, overhead doors, and doorways

  • UVC lamps in HVAC systems disinfect the air

  • UVC lamps in water systems for clean water supply

With a wide range of UVC disinfection systems available to incorporate into hospitals and healthcare facilities, automating an effective UV disinfection solution is much more attainable than in previous years. Integrating UV disinfection systems with building management systems allows for facility managers to activate UV light disinfection systems on demand or as an automatic cycle in various areas of the hospital.

Automated hospital UV disinfection systems provide an invaluable benefit to protect patients and staff as well as cost-effective operation with no required labor. Activating automated UV disinfection in operating rooms after surgeries and prior to new patient arrivals adds a protective layer to manual cleaning and can reach odd places that may get overlooked during manual cleaning processes.

A study published by the National Institute of Health (NIH) in 2013, concluded that an automated hospital UVC system led to a significant decrease in the total number of colony-forming units (CFUs) of many types of organisms including Vancomycin-Resistant Enterococci (VRE), C. difficile and Acinetobacter.

Hospitals can incorporate automated UV disinfection systems in operating rooms, patient rooms, labs, storage facilities and on equipment surfaces. UVC germicidal lamps offer an enhancement to traditional cleaning methods and are proven to be more effective than cleaning with chemicals alone.

LightSources Offers UVC Lamps for Any Hospital Disinfection System

For over 35 years, LightSources has been offering superior products and processes to OEMs as a world leader in the manufacturing of quartz germicidal lamps. Our partner company, LightTech in Hungary, allows us to provide prompt service of quality UV germicidal lamp solutions to our customers in Europe and Asia.

LightSources and LightTech design and produce UV germicidal lamps with peak UV output at 254nm for maximum effectiveness, 185nm ozone-producing lamps, and a wide selection of UVC lamp types for various applications:

  • Amalgam Lamps

  • Quartz Germicidal Lamps:

    • High output lamps

    • Standard output lamps

    • Germipak UV Cell lamps

    • U-lamps

    • Subminiature UVC lamps

    • R.P.T. UVC lamps

    • All-in-one submersible UVC lamps

  • Soft Glass Germicidal Lamps:

    • Standard and HO lamps

    • Compact lamps

  • Medium Pressure UV Lamps

    • Custom MP UV lamps

  • High-Pressure UV Lamps

    • Custom HP UV lamps

  • Quartz sleeves

  • Shatter+ Protech technology

  • Proprietary Bases and Sockets

Low-Pressure Amalgam UV Disinfection Lamps

LightSources provides the widest selection of high-quality pellet and spot amalgam technology in the lamp industry, with both standard and custom-engineered solutions available. Our amalgam lamps deliver the same high performance in either vertical or horizontal operations and yield up to three times the UVC output of other lamps comparable in length. Proprietary LongLife+ technology is applied to our amalgam line to reduce output depreciation, contributing to a long useful life of up to 16,000 hours with end-of-life output at 90% of initial UVC output. We offer a wide selection of spot and pellet amalgam lamps with custom sizes, shapes and UVC output available.

Quartz Germicidal Lamps

The type of fused quartz used in the lamp body determines UV wavelength emissions. Low ozone quartz delivers 90% emissions at 254nm, while very high ozone (VH) lamps clear fused quartz emit both 185nm and 254nm. Synthetic quartz is also available for an even higher ozone emission at 185nm. LightSources offers a wide selection of quartz lamps, standard output, high output, Germipak UV Cell germicidal lamps, and U-shaped quartz germicidal lamps.

Soft Glass Germicidal Lamps

Soft glass offers more variety with sizes and shapes than quartz glass with a wide range of operating currents. We engineer soft glass germicidal lamps with the highest in quality material and a wide range of sizes. Soft glass germicidal lamps are an economical option over quartz lamps, with custom shapes and sizes available.

April 29, 2024 /John Andros
GERMICIDAL LAMPS, UVC GERMICIDAL LAMPS, UVC Lamp
Germicidal Lamps

UV Kitchen Exhaust: Self-Cleaning Technology

March 29, 2024 by John Andros in Germicidal Lamps

Originally posted at: https://www.light-sources.com/blog/uv-kitchen-exhaust-self-cleaning-technology/

UV light technology provides disinfection solutions to a variety of air, surface, and water treatment applications with high-intensity UV lamps proven to break down organic compounds. UVC germicidal lamps are used in a multitude of environments where eliminating harmful microorganisms is critical, such as hospitals, schools, and many public areas including restaurants. UV lamps help to eliminate germs in the air and on surfaces, providing proven restaurant disinfection solutions in dining areas as well as in the kitchen with food irradiation and UV kitchen exhaust systems.

UV lamps in kitchen exhaust systems provide many benefits by preventing bacteria and grease buildup in kitchen exhaust hoods. This self-cleaning technology provides a cleaner, healthier and safer commercial kitchen by eliminating odors and mitigating the risk of grease fires.

UV lamps with emissions in the UVC wavelength have long been used in HVAC systems to eliminate bacteria and mold growth in ductwork. This UVC technology provides the same benefits and also prevents grease buildup in Commercial Kitchen Ventilation (CKV) systems.

How UV Kitchen Exhaust Systems Work

Kitchen exhaust systems provide the primary function of extracting grease through mechanical filters and inertial means. Kitchen hood exhausts successfully remove grease particles. The smaller grease particulates and vapor that remain are then exposed to the UVC light to break down the molecules. This process effectively prevents grease buildup, thus reducing maintenance, cleaning and mitigating fire hazard.

Photolysis and Ozonolysis

UVC lamps in UV kitchen exhaust systems break down grease particles in commercial kitchen exhaust systems through two distinct processes: photolysis and ozonolysis. Photolysis is the chemical reaction that occurs when a chemical compound is broken down by photons. Photolysis breaks down the molecular bond and grease particles and ozonolysis oxidizes the grease molecules.

Installing UV Lamps in Kitchen Exhaust Systems

UVC germicidal lamps can be installed in the interior of the hood exhaust plenum, in stainless steel fixtures against the top or back of the ductwork. UV lamps should be installed in kitchen exhaust systems with a separation of at least 10 cm to provide ample spacing for effective photolysis to occur.

Breakdown of Grease Buildup

The UV radiation reacts with the air pulled through the kitchen hood exhaust during the photolysis process, also called photodissociation, where the photons break down the oxygen molecules into oxygen atoms. The oxygen atoms combine with any remaining oxygen molecules to form ozone molecules, which react with the organic compounds in the grease.

This chemical reaction called ozonolysis, alters the grease organic compounds in the exhaust air to form easier-to-clean byproducts, specifically carbon dioxide and water vapor. Ozonolysis is proven to significantly reduce the buildup of grease deposits in both the grease exhaust duct and the hood exhaust system.

Benefits of UV Lamps in Kitchen Hood Exhaust Systems

Reducing grease buildup reduces the maintenance and cleaning required in a kitchen hood exhaust and also decreases the likelihood of grease fires occurring in the kitchen exhaust system.  Ozone is known to eliminate foul odors in the air, thus ozonolysis helps to eliminate the odor that comes with built-up grease, which can occur quickly in busy commercial kitchens.

UV disinfection lamps in UV kitchen exhaust systems help restaurant owners to achieve many benefits including:

  • Significantly reduce built-up grease in kitchen exhausts

  • Eliminate foul orders from stale, built-up grease

  • Mitigate the risk of fires in kitchen exhaust systems

  • Save money on cleaning and maintenance expenses

  • Supports sustainable heat recovery

While UVC technology is safe and chemical-free, direct exposure to skin and eyes should be avoided. Safety measures that turn off the UV lights when the kitchen exhaust is turned off protect kitchen personnel.

It is important to use reputable UVC germicidal lamps and hood exhaust systems to ensure the proper breakdown of molecules as well as ensure the safety of kitchen and restaurant workers. UVC systems should be installed in kitchen hood exhausts with several interlocks, ensuring that the UV lights will turn off when the exhaust system is off or when a filter is removed to protect against human exposure.

UVC Lamps for Restaurants and UV Kitchen Exhaust Systems

LightSources is recognized worldwide as a leading manufacturer of high-tech UVC germicidal lamps. We support OEMs of all sizes with a wide selection of UVC germicidal lamps in various shapes and sizes as well as with custom-engineered solutions to meet your specifications.

Our lighting engineers possess deep technical knowledge of UV radiation and continually develop first-to-market, proprietary technology through extensive research and development. We offer UV lamp prototype solutions and custom phosphor blends to produce the optimum wavelength for specific germicidal needs. Our UVC germicidal lamps can be found in a multitude of applications including UVC robots, hospital air and surface disinfection, restaurant and UV kitchen exhaust systems, and many other air, water or surface disinfection applications.

March 29, 2024 /John Andros
UVC GERMICIDAL LAMPS, UV DISINFECTION LAMPS, GERMICIDAL LAMPS
Germicidal Lamps

UV Light Disinfection Robot: Still a Viable, Cost-Effective Solution

February 26, 2024 by John Andros in Germicidal Lamps

Originally posted at: https://www.light-sources.com/blog/uv-light-disinfection-robot-still-a-viable-cost-effective-solution/

Service robots have been used in the medical field for many years with robots assisting with surgery, roaming bots with tablets allowing for physician tele-visits and even drones delivering emergency medical equipment. Robots have many other applications in the healthcare industry such as UV light disinfection robots which are becoming increasingly popular in hospitals to sterilize patient rooms, operating rooms, common surfaces, and medical equipment.

UV Light Disinfection Robots: Not Entirely a New Concept

Even before the global COVID-19 pandemic, hospitals across the country like this New Jersey hospital were investing in UV light disinfection robots according to this article in Robotics Business Review magazine published March of 2019. Hospital acquired infections (HAIs) have always been a concern as some of the most commonly transmitted HAIs are “superbugs” which are resistant to antibiotics. MRSA (methicillin-resistant Staphylococcus aureus), VRE (Vancomycin-resistant enterococci), C. diff. (Clostridium difficile) and other superbugs cause serious pain and suffering and may even cause death.

Cleaning and disinfection practices are a significant concern and one of the greatest costs of the modern healthcare sector. Hospitals must always maintain diligence in sterilization procedures to prevent hospital acquired infections and studies have been conducted on the efficacy of UV light robots long before the COVID-19 pandemic.

This study from the National Institutes of Health from 2017, Application of Service Robots for Disinfection in Medical Institutions, concludes that semi-automated UV light systems such as UV light robots were effective to substantially reduce the burden of MRSA and bacteria on surfaces, including in vacated patient rooms known to have been infected with MRSA.

MRSA is in the beta coronavirus family, similar to the SARS-CoV-2 virus that causes COVID-19. Several recent studies have shown that UV light may be effective at eliminating the SARS-CoV-2 virus as other coronaviruses, including MRSA, with the right conditions and exposure. According to the Food and Drug Administration, FDA, as of February 2021 there was still limited published data on the dose, duration and wavelength required to inactivate the SARS-CoV-2 virus.

More UV Light Robots Roaming Hospital Halls

Since the onset of the coronavirus pandemic, hospitals have been faced with new challenges in preventing the spread of COVID-19 amidst record capacity levels with many patients infected with the deadly SARS-CoV-2 virus. On top of treating high patient levels, healthcare workers at times had to deal with shortages in protective personal equipment (PPE), putting staff and patients at an increased risk of infection.

Hospitals across the country sought new tools and innovative methods to protect patients and staff. UV light disinfection robots provided a valuable tool as more hospitals began implementing mobile ultraviolet technology to aid in the fight against COVID-19. The Henry Ford Health System in Detroit invested in 20 UV light robots as reported in December of 2020, the Norman Regional Health Systems in Oklahoma purchased 6 UV light disinfection robots in July of 2020, as well as many other hospitals and medical facilities.

Hospitals are not the only application where UV light robots have been used to combat infectious disease. Airports, mass transit stations, libraries, schools, shopping malls, and many other public places have invested in autonomous virus killers on wheels to protect against the spread of germs.

UVC Disinfection Devices

A UVC disinfection robot is one of several devices where UV technology is used to eliminate harmful germs. Additional UV disinfection devices include air purification systems, water treatment systems and additional surface sterilization technologies. UVC disinfection devices typically use UVC germicidal mercury lamps due to high effectiveness and low cost.

Air purification systems are often installed as a wall-mounted unit or in HVAC systems and help to clean and purify the air that we breathe by eliminating harmful airborne pathogens. UVC lights mounted over surgical equipment and in operating rooms help to provide surface sterilization and UV water treatment systems eliminate harmful pathogens from water supplies in many applications. While air and water UV purification systems are still widely in use in many environments, the use of UV light sterilization robots has increased with a greater awareness of the effectiveness and the benefits that mobility devices provide.

Advantages of UV Light Disinfection Robots

UV light robots should be considered for use only in addition to manual cleaning practices and never relied upon for soul sterilization purposes. UV wavelengths are more effective when hitting a clean surface as dirt can trap microorganisms that may be difficult to be eradicated by UV light. Hospitals and other applications that have employed the use of UV light robots have realized many advantages such as:

Semi-automatic operation – staff can be trained to operate the UV robots which can be programmed to follow a particular path in a patient room, focusing UV rays in hard-to-reach places and can automatically return back to a charging station.

Highly effective – UV light robots have been proven to significantly reduce harmful levels of pathogens to safe levels, in addition to manual cleaning practices.

No labor expenses – UV robots have become part of the staff in many hospitals, even given names of their own. Robots however never ask for a lunch break, a day off or overtime pay.

Low maintenance – UVC germicidal lamps provide thousands of hours of effective sterilization with low maintenance and low ongoing costs.

No additional cleaning chemicals – UV lamps provide high sterilization efficacy with no need to purchase and store chemical cleaners.

Return on investment – UV light robots provide a worthwhile return on investment to hospitals by reducing costs of extended hospital stays due to HAIs, which occur in 1 out of 31 patients according to the Centers for Disease Control and Prevention, CDC. Additionally, by eliminating superbugs from patient rooms and saving even one life due to serious infection, this added level of disinfection is priceless.

UVC Germicidal Lamps for UV Light Disinfection Robots

LightSources and LightTech, together with our valuable partner companies comprise the LightSources group, recognized as a world leading UV lamp supplier. We offer a wide selection of UVC disinfection lamps, with various proven technologies, sizes and styles and custom engineered germicidal lamp solutions available. Our UV lamp engineers possess deep technical knowledge of UV radiation and lamp design to provide customized solutions including custom phosphor blends and proprietary technologies to meet the needs of innovative original equipment manufacturers (OEMs) of all sizes.

Our UVC germicidal lamps for UV light robots include:

  • Low pressure Mercury lamps

  • Medium pressure UVC lamps

  • Compact quartz lamps

  • Standard quartz

  • High-output quartz

  • Standard softglass

  • High output softglass

  • Amalgam lamps with proprietary technology.

  • UVC ozone lamps

  • Custom lamp bases and sockets

  • Electronic ballasts

Our proprietary technology Shatter ProTech provides a cost-efficient solution to protect lamps and the environment with a shield that is acid and heat resistant and fits any lamp geometry. Our additional proprietary lamp technologies give our customers an added competitive advantage with high-quality, cost-effective UV lamp products for any germicidal application.

February 26, 2024 /John Andros
AIR PURIFICATION SYSTEMS, GERMICIDAL LAMPS, UVC DISINFECTION LAMPS
Germicidal Lamps

HVAC UV Light Benefits

January 31, 2024 by John Andros in Germicidal Lamps

Originally posted at: https://www.light-sources.com/blog/hvac-uv-light-benefits/

Ultraviolet (UV) light has powerful germ-killing properties and provides advantages to a wide range of sterilization applications such as the many HVAC UV light benefits. UV light emitted in the UVC range is proven to kill many types of microorganisms including bacteria and viruses, even mold and mildew. Other types of UV lamps such as UV ozone lamps also eliminate foul odor by eliminating volatile organic compounds (VOCs) from the air that cause odor and illness.

Most Important HVAC UV Light Benefits

The two most important benefits of UV lights in HVAC systems are that they prevent mold and mildew from accumulating inside the equipment, which makes your HVAC system run more efficiently and reduces energy consumption. The other greatest benefit is improving indoor air quality (IAQ) by eliminating bacteria and viruses that circulate throughout a home or office.

UV lights in HVAC systems provide a healthier living environment and improve efficient HVAC operation as well as providing the following benefits:

  • Kills germs, viruses, and bacteria.

  • Eliminates mold, mildew, and other allergens.

  • Removes volatile organic compounds (VOCs)

  • Eliminates foul odors.

  • Improves HVAC efficiency.

  • Reduces HVAC maintenance.

  • Lowers monthly expenses and energy consumption.

HVAC UV Light Benefits Equipment

UVC germicidal lamps harness the power of UV radiation to kill microorganisms and when installed in heating, venting. and cooling (HVAC) systems, UV lamps provide many benefits. UVC radiation kills bacteria and mold that can build up inside an HVAC’s coils, which keep equipment cleaner, running more efficiently and requiring less maintenance. The inside of an HVAC unit is dark and damp, and a prime location for the build-up of mold, fungi, and bacteria. UV lights help to eliminate contaminants inside the HVAC system and in air-ducts that could be prone to spreading disease.

When UV lights are professionally installed inside an HVAC system, they target the coils where contamination is likely and prevent the growth and build-up of pollutants such as mold, mildew, pollen, dust, smoke, and soot. UV lights prevent the build-up of these contaminants which can reduce the performance of your HVAC unit and provide cleaner air to circulate throughout your home or office.

HVAC UV Light Benefits Indoor Air Quality

HVAC UV lights also prevent the spread of mold spores, fungi, bacteria, and viruses throughout your living area which significantly improves indoor air quality. UV lights help to prevent sickness from spreading by removing airborne pathogens before they spread throughout your living area. Killing these contaminants that cause illness at the source reduces allergies and asthma symptoms in people with asthma and respiratory illnesses.

When HVAC UV lights kill VOCs, they do more than just eliminate odor. VOCs are also known to cause many health problems including throat, nose, and eye irritation as well as headaches and nausea. By eliminating VOCs from circulating throughout your indoor air, you are improving the air quality and health of everyone in the building.

UVC Germicidal Lamps for HVAC

LightSources is a leading global supplier of high-tech germicidal UVC lamps designed and engineered for optimum germ-killing power. We offer UVC germicidal lamps in various sizes, types, and styles to suit any sterilization need including UV air disinfection, water and surface sterilization. Our lighting engineers offer custom designed and prototype solutions to meet the demands of OEMs large and small.

January 31, 2024 /John Andros
GERMICIDAL LAMPS, Germicidal UV Lamps, UVC GERMICIDAL LAMPS
Germicidal Lamps

UV Light for Medical Use

November 03, 2023 by John Andros in Germicidal Lamps

Ultraviolet (UV) light is used for many purposes that promote health and wellness as there are many applications that harness the benefits of UV light for medical use.

UV Lamps Provide Many Health Benefits

UV light is measured in wavelengths mainly in the spectrum of 100 nanometer (nm) to 380 nm and is divided into three regions: UVA (320 – 400 nm), UVB (280 – 320 nm), and UVC (100 – 280 nm). UVC is short wave UV radiation and is completely absorbed by the ozone layer when emitted by the sun. UVA and UVB are the rays that reach the earth and are associated with the common sunburn as well as providing benefits like vitamin D and many other phototherapy treatments.

Scientists and lamp engineers such as the knowledgeable engineers at LightSources design and engineer UVC germicidal lamps to emit 254 nm, the most effective wavelength to kill viruses and bacteria. 185 nm ozone lamps are also effective in many sterilization applications. UV lamps designed to emit UVA and UVB wavelengths provide benefits to the medical industry in phototherapy lamps, as these wavelength emissions are proven effective to treat a host of medical conditions.

UV lamps provide many benefits in two distinct areas:

UVC Germicidal Lamps – UV light provides many benefits to the healthcare industry and many other environments with UVC germicidal lamps that eliminate harmful viruses and bacteria in the air, in water and on surfaces.

UV Phototherapy Lamps – UV lamps are used for medical phototherapy purposes, which is also called light therapy, where UV lamps are specifically designed to treat certain medical conditions.

LightSources and LightTech are world leading manufacturers of innovative UV lamps used in germicidal and phototherapy applications, providing patented lamp products with first-to-market technology and solutions.

UV Light for Medical Use in Germicidal Applications

Germicidal UVC lamps provide health benefits to the medical industry and are used to provide effective sterilization to many environments. Germicidal lamps are used in medical facilities, doctor’s offices, and hospitals as well as many public places and commercial institutions to stop the spread of disease. UVC germicidal lamps sterilize that air when installed in HVAC systems or in upper room air irradiation units to prevent airborne illnesses. Germicidal lamps are also used to eliminate harmful microorganisms and water and on surfaces.

Hospitals sterilize surgical equipment as well as surfaces such as in operating rooms and patient rooms. UVC robots are utilized in many hospitals and public places to further eliminate harmful pathogens. UVC light used in addition to regular cleaning protocol is proven to significantly decrease virus and bacteria load and can even eliminate superbugs like antibiotic resistant bacteria. UV sterilization helps to promote health and wellness in many public places such as workplaces, schools, libraries, airports, bus stations, and residential homes.

UV light promotes health and wellness in many medical applications with effective sterilization on surfaces, in water and in air sterilization systems.

UV Light for Medical Use with Phototherapy Lamps

Medical phototherapy lamps are used under a doctor’s supervision with specially designed lamps administering UVA, UVB and narrowband UVB emissions. Phototherapy UV lamps treat a host of medical conditions such as variety of skin conditions, mood disorders and successfully treat neonatal jaundice. Some of the most common applications of UV light for medical use include effective treatment for many skin conditions including acne, eczema, psoriasis, and vitiligo.

UV Light for Acne Treatment – acne vulgaris affects more than 85% of adolescents and is the most common skin condition in the U.S. a combination of red light and blue light is proven to be effective in treating acne to prevent new outbreaks and alleviate symptoms of current outbreaks. Blue light emitted at 415 nm is effective at killing bacteria to prevent acne outbreaks and red light emissions between 600 to 700 nm stimulates cell regeneration, healing and soothes inflammation.

UV Light for Eczema – eczema is a common skin condition which affects more than 30 million Americans with various types and symptoms. Eczema patients may experience different symptoms which can include dry, rough, scaly, itchy and inflamed patches of skin. UVA, UVB and narrowband UVB phototherapy lamps have been proven effective to improve symptoms and prevent outbreaks of eczema.

UV Light for Psoriasis – psoriasis causes patients to experience patches of dry, scaly and itchy skin with outbreaks of raised, hardened lesions. Topical ointments can provide relief for mild symptoms although UV phototherapy lamps can be more effective to help patients with severe psoriasis symptoms.

UV Light for Vitiligo – vitiligo is a skin condition that is considered an autoimmune disease where the immune system attacks the pigment forming cells in the body, melanocytes, causing white patches to appear on the skin. A UVB phototherapy lamp for vitiligo used in combination with medication is effective to put pigment back into the white patches.

UV light provides these medical benefits to these skin conditions and also treats forms of mood conditions such as Seasonal Affective Disorder, or SAD.

UV Light for Depression – many people who live in the northern hemisphere experience seasonal depression during the winter months. Symptoms of SAD are like symptoms of nonseasonal forms of depression which can become severe and include social withdrawal, weight gain, fatigue, and a lack of interest in normal activities. Phototherapy lamps help to combat symptoms when the days get shorter with less natural sunlight and are considered the most effective form of treatment for SAD.

UV light for neonatal jaundice – this condition occurs in newborns and causes yellowing of the skin and the whites of eyes as toxins build in the body from underdeveloped liver function. Treatment with UV blue light prevents brain damage that can occur with elevated levels of bilirubin in the blood and breaks down bilirubin into substances that are safely excreted through waste. UV lights to treat jaundice are also called bili-lights for this reason.

LightSources Offers Quality UV Lamps for Medical Use

LightSources and LightTech design and engineer UV medical phototherapy lamps to treat all these conditions as well as UV germicidal lamps for medical use with effective sterilization and disinfection. Our vast resources including a state-of-the-art glass factory in Europe combined with the leading high-tech lamp designers and engineers provide the most effective and cost-efficient solution for nearly any application requiring UV light for medical use.

November 03, 2023 /John Andros
UVC GERMICIDAL LAMPS, GERMICIDAL LAMPS, UV PHOTOTHERAPY LAMPS
Germicidal Lamps

UVC Virus Killers: Germicidal Lamps and Far UVC

April 14, 2023 by John Andros in Germicidal Lamps

The ongoing COVID-19 pandemic continues to stress the importance of utilizing effective Infection Prevention and Control (IPC) methods, and germicidal lamps are gaining in popularity as UVC virus killers.  Ultraviolet (UV) based technologies are promising IPC tools showing high efficacy in killing many types of beta coronaviruses, including the SARS-CoV-2 virus that causes COVID-19.

As of March 29, 2023, the toll of the global health pandemic as reported by the World Health Organization, WHO, reports 761,402,282 confirmed cases of COVID-19, including 6,887,000 deaths in 229 countries and territories and 102,697,566 confirmed cases of COVID-19 with 1,117,054 deaths in the United States.

UVC Virus Inactivation and Efficacy in Reducing the Spread of Disease

The Federal Drug Administration, FDA, offers additional information for businesses and consumers to learn more about ultraviolet light virus inactivation and its efficacy in reducing the spread of disease. UVC radiation at the correct wavelength has been used for decades for the effective disinfection of air, water, and surfaces and is engineered in UVC germicidal lamps. UV-C light kills bacteria such as tuberculosis and many viruses, including beta coronaviruses.

UV-C Light Kills Viruses MERS, SARS, and SARS-CoV-2

Coronaviruses are a large family of viruses that typically cause mild-to-moderate respiratory infections in humans, although coronaviruses are known to infect both humans and animals. They can often spread in animals but can jump to humans and continue spreading in humans with viral mutations. Coronaviruses are named partly due to the crown-like spiked protrusions on the surface.

Some types of coronaviruses may cause illnesses like the common cold, although severe acute respiratory syndrome viruses (SARS-CoV) can be severe, such as the fatal outbreak of SARS in 2002 and Middle East Respiratory Syndrome coronavirus (MERS-CoV) in 2012. SARS-CoV-2 is another severe acute respiratory syndrome virus that causes COVID-19.

Ultraviolet light virus inactivation is highly effective at eliminating the threat of coronaviruses, including the SARS-CoV-2 virus, when administered at the proper wavelength and dosage. According to a scientific report, UV-C irradiation is highly effective in inactivating SARS-CoV-2 replication; the response of UV virus inactivation depends on both the virus concentration and the UVC dose. The results of this study and many others show that the SARS-CoV-2 is extremely sensitive to UVC light.

UVC Light Kill Viruses And Other Harmful Pathogens

According to a study published in 2020 and reported by Biological Consulting Services, UVC virus inactivation was determined against various harmful pathogens with results including:

  • Influenza A H1N1 – 99.999% reduction

  • SARS-CoV-2 virus – 99.999% reduction

  • Polio Virus LSc 1 – 99.99% reduction

  • Methicillin Resistant Staphylococcus Aureus (MRSA) – 99.99 reduction

  • Salmonella species, 6 variations – 99.99% reduction

UV virus elimination is very effective when using the right type of UVC germicidal lamps and the proper dosage, and environment such as line of sight disinfection on a surface not contaminated with dirt that can affect UV inactivation results. This is why ultraviolet light virus disinfection is recommended in addition to manual cleaning practices for maximum effectiveness.

UVC Virus Disinfection in Air, Water, and Surfaces

UVC germicidal lamps are typically designed to emit wavelengths at precisely 254 nm, proven to be highly effective at penetrating the DNA of microorganisms to render them harmless. Far UVC lamps are gaining in popularity and showing high germicidal efficacy while being safer to operate in the presence of humans. Standard germicidal UVC lamps should operate in non-occupied spaces and can be found in upper room ultraviolet germicidal irradiation (UVGI) systems, HVAC systems, and other disinfection devices like UVC robots programmed to run through hospital hallways or patient rooms that are unoccupied.

Not all UVC germicidal lamps are created equal, and it is important to work with an experienced ultraviolet lamp designer to ensure effective germicidal properties.

April 14, 2023 /John Andros
FAR UVC, GERMICIDAL LAMPS, UVC GERMICIDAL
Germicidal Lamps

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