One question we get asked often is how polarized sunglasses lenses work. The blue or UV photons generated in the LED either travels through the phosphor layer without alteration, or they are converted into yellow photons in the phosphor layer. The UV light that is inactivating microorganisms in water is non-visible light, therefore the blue light that you see coming off a UV lamp is not what's doing the work. These oxidants then react with the contaminants of interest in the water. So, it is essential to replace the UV lamp every 12 months. So, I bought a couple of the more popular and respected wands and put them to our tests. This can be anything from algae, bacteria, and viruses that are free-floating. The arc tube may be made of either quartz or ceramic and contains a starting gas (usually argon), mercury, and MH salts. Most sunscreens do not protect against UV-C light. So far we knew up to the UltraViolet light generates inside the Fluorescent lamp. It plays a key role in the development of skin cancer and a contributory role in tanning and photoaging. This is NOT UV light! For this reason, it has virtually zero impact on the teeth whitening process. Keep these things in mind when planning the UV light set-up for your box turtle’s habitat: UVB rays won’t go through glass or plastic. There are other types that utilize UV light rays to dry and there is still another type that is designed with LED lights doing all the work. The TopTech UV stick light bulb is estimated to last 9,000 hours, which equates to over 1 year. Dirty duct work restricts air flow and the furnace and air conditioner have to work harder to achieve the temperature that is set on the thermostat.



A UV lamp can be described as a low pressure mercury vapor lamp, which means it fires via mercury vapor. How does uv light work in counterfeit detection? It is simple really, i am studying this at the moment and the uv light can identfy water marks such as the queens head and the watermark at the top. The new crop of LED gel lamps on the market have caused a bit of confusion as to the benefits and differences between LED and the standard UV lamps techs have been using for years. That's part of the reason why there's widespread interest in discovering light sources that can kill unwanted organisms – while leaving humans unscathed. These enzyme-based urine removal products do more than dilute the urine. By Elizabeth Whitman @elizabethwhitty 06/30/15 AT 3:03 PM. This project is continued from How to Install a Honeywell Ultraviolet Light Treatment System - Part 2. Spores are typically resistant even to UV light treatment. Melanin is a protective pigment in skin, blocking UV radiation from damaging DNA and potentially causing skin cancer. They do not expose people to UV rays if they are working properly. Making an Ultra Violet (UV) Light Detector Subject Area(s) Physics Associated Unit None Associated Lesson None Activity Title Making a Ultra Violet (UV) Light Detector Header Insert Image 1 here, right justified Group Size 1 Expendable Cost per Group US$1 Grade Level 5 (4-6) Time required 45 minutes Summary. , it deactivates the DNA of bacteria, virus and other pathogens and thus destroys their ability to multiply and cause disease. Batteries – it is perhaps the most important component, a power source to make the flashlight work. LIGHTSMAX Bug Zapper Light Bulb - [2019 Upgraded] 2 in 1 Electronic Insect Killer, Mosquito Killer, Fly Killer UV Lamp, 110V E26/E27 Light Bulb Socket Base for Indoor and Outdoor Add To Cart There is a problem adding to cart. Limitations in UV Water Systems Ultraviolet purification itself is not enough to purify water down to drinking water purposes. Black lights work on this same principle. This can be anything from algae, bacteria, and viruses that are free-floating.



Generally, UV light is considered as falling between the wavelengths 100nm – 400nm, however UV can be categorized even further into. , it deactivates the DNA of bacteria, virus and other pathogens and thus destroys their ability to multiply and cause disease. How Does a UV Sterilizer Work? A UV sterilizer looks similar to a light. In fact, UV light is responsible for causing sunburns. It's possible to block 99 percent to 100 percent of ultraviolet rays from reaching your delicate eyes and causing damage. But UV light has no use as it is not visible, It can not give us the light we need. How does the UV pool sanitizer work? A. As the water flows past the lamp, the microbes in the water receive a lethal dose of UV. When electricity is applied to the lamp, this mercury is "excited" and emits UV light. How does UV disinfect water; How does UV disinfect water. Ultraviolet or "UV" filters block some UV light from entering the camera lens. The CND UV Lamp and OPI UV Light are the best UV nail lamps you can find. These lamps are filtered. A UV lamp that emits ultraviolet radiation similar to sunlight and thus produces vitamin D 3 in the skin is an excellent alternative for CF, and SBS patients who suffer from vitamin D deficiency due to fat malabsorption, especially during the winter months when natural sunlight is unable to produce vitamin D 3 in the skin. With LED nail lamps, you can get much faster curing than with a UV lamp. Even a small urine stain on the carpet encourages your dog to continuously re-mark that spot. Compare the Air Probe Sanitizer™ to others. Water that is not filtered can contain iron, manganese and other particles that can either absorb or scatter UV light reducing the effectiveness of the disinfection system. UV light has been used for many years to aid teeth whitening, but how does it actually help the tooth whitening process? If you are considering a tooth whitening procedure, you should be aware of the associated health concerns of UV light and that there are safer alternatives available.



woodshed You need to place both bulbs in the coil box. The UV light used in this process is a high powered UV which is also known as UV-C or germicidal UV. To utilize this type of UV light for water purification, a mercury vapor lamp is needed to convert electrical energy to short-wave UV light energy. The spectrum of UV light can be subdivided into four main categories, UV-A, UV-B, UV-C and Vacuum UV. All are designed to do some form of work within the air handler a UV-C fixture is just one of these components. The operation of an optically active substance has the following effect: the light at the back of the screen becomes much less visible. Certain procedures may be safe and effective, but is ultra-violet (UV) light included in the "safe" category?. Instead of going a week to 10 days without chipping, you can get up to three weeks of useful life from a UV gel nail manicure. UV light is part of the electromagnetic spectrum and ranges between 100 to 400 nanometers. The exact wavelengths emitted depend on the vacuum pressure within the lamp tube itself. The UV-C light of UV sterilizer destroys the nucleic acids and disrupts the DNA of microorganisms which make. An infrared lamp will sometimes have a slight orange or red glow to it, but not be very bright. UV light and Solar Panels My question is very simple but I am unsure if anyone can answer it. Spores are typically resistant even to UV light treatment. How to Kill Bacteria With Visible Light in the Refrigerator | American Council on Science and Health.



In addition, they don’t cause cell mutations as the UV light so they don’t. There has been much research on the use of VUV lamps for ozone production, along with some (very limited) actual implementation in commercial applications. How does uv light work in counterfeit detection? It is simple really, i am studying this at the moment and the uv light can identfy water marks such as the queens head and the watermark at the top. Remove any plastic or glass covers from fixtures, hoods or the top of the cage. Cleaning surfaces with it could prove problematical, but the toothbrush ones do work as well. The Australian sun can be very dangerous, and unfortunately, Australians have a very high risk of developing skin cancers. But, UV light in appropriate doses also has health benefits such as helping individuals' bodies form vitamin D, sterilizing water and surgical equipment, and sterilizing products in the. A neon light contains a tiny amount of neon gas under low pressure. A blacklight (or often black light ), also referred to as a UV-A light, Wood's lamp, or simply ultraviolet light, is a lamp that emits long-wave ( UV-A) ultraviolet light and not much visible light. The bright light from some Xerox machines contains a weak form of UV. If the reason you are trying to avoid UV lamps is for safety, another way to cure gel nails without a UV light is using a LED nail lamp. This is a hot topic we'll discuss in greater detail in just a minute. How Does a UV Sterilizer Work in an Aquarium? A UV sterilizer acts via a fluorescent bulb which emits light of 253. An ultraviolet (UV) marker is a pen whose marks are fluorescent but transparent: the marks can be seen only under an ultraviolet light. UV curing is the process by which ultraviolet light is used to initiate a photochemical reaction that generates a crosslinked network of polymers. UV light kills germs but doesn't harm you or your device. Placement and direction of UV lamps.



In recent years, UV Sterilizers designed for use in aquariums and ponds have been improved to lengthen the time the target organisms spend exposed to the UV light, making them. ) Vaporizing mercury and making light: The normal fluorescent lamp has a small amount of mercury in the tube. UV light can be harmful just as the sun's UV light can be when someone is exposed for too long a time. (99% kill rate of influenza virus is 6600 mW S/cm2). UV curing is the process by which ultraviolet light is used to initiate a photochemical reaction that generates a crosslinked network of polymers. This is the first time I take charge of maintenance. If you or someone that you know has been recently diagnosed with Seasonal Affective Disorder and were advised in having light therapy treatment by a Medical Professional such as you GP then you may find yourself wondering exactly 'How does a SAD Light work?'. In addition, although your eyes can't see the UV light as it leaves the black light, some of that UV light that gets reflected back to your eyes after hitting the phosphors now has less energy and falls within the visible range. How does UV disinfect water; How does UV disinfect water. Their relative contributions to cataract remain unclear, but UVA penetrates more deeply into the body and may be more likely to reach the lens. How Does a Spectrometer Work? A spectrometer is a scientific instrument used to analyze the light properties of a luminous object or reflected light. Soon after I brought De-Mao Chen from Shanghai for a brief post-doc, he worked on birds with Tim Goldsmith at Yale. Also remember that some materials can reflect more than just 1 single color in the visible range. UV units work in virtually any pool—inground, above-ground, vinyl, fiberglass, and concrete (gunite/shotcrete). File any areas where the nail is flaking or peeling so it won't peel after your manicure. Today, deuterium lamps are used in most UV detectors because of they provide an almost continuous spectrum of light over the 190-400 nm range most commonly used for LC detection. All UV drinking water treatment devices require power to generate UV light.



Mounted to the flow chamber, the UV system casts UV light into passing water, effectively eradicating microbes of every kind, including mold spores, bacteria, and viruses related to. The beads are not affected by visible light, such as the light from a light bulb, and remain white, or. This also represents wasted and useless UV energy. One of the primary methods for doing this was moving from fluorescent lighting fixtures toward tungsten-based fixtures, and later, halogen fixtures. LIGHTSMAX Bug Zapper Light Bulb - [2019 Upgraded] 2 in 1 Electronic Insect Killer, Mosquito Killer, Fly Killer UV Lamp, 110V E26/E27 Light Bulb Socket Base for Indoor and Outdoor Add To Cart There is a problem adding to cart. In the first step, UV light catalyzes the dissociation of hydrogen peroxide into hydroxyl radicals through chain reactions. This is due to the phosphors within an LED lamp that convert the Ultraviolet light to white light. How UV Light Purifies Air So, how can UV-C light, a natural product of the sun, help purify indoor air? It all has to do with the UV-C light's ability to destroy cells. Ultraviolet Utilizing UV (Ultraviolet) Rays in Flying Insect Control, Integrated Pest Management. ALWAYS wipe down exposed surfaces with a proper decontaminant PRIOR to turning on the UV lamp. The light inside your air purifier will kill flu virus germs floating around in the air, along with many other microscopic bad guys that make their way into the machine. All in all, the Smart UVC could provide and extra level of decontamination beyond standard cleaning methods and should help lower infection rates in hospitals. UV light rays are invisible and have shorter wavelengths than visible light. Brighter boxes will require less time to use each day, compared with dimmer boxes, to achieve the same effect. Therefore, it is possible that despite advertisements to the contrary, the LED light in your bug trap is not producing the ultraviolet light necessary to attract bugs. Sun irradiation has been widely used in medicine for many years already, it has been proven by scientists, that UV-irradiation (especially UVA and UVB light) is very effective in treatment process of some skin diseases. These UV lamps to be referenced here are used in the Aquarium/Pond Industry. Typically, your less expensive long wave UV light flashlights will use LED black light bulbs.



UV lamps are excellent at rendering these materials harmless. Length of the lamp - when the lamp is mounted parallel to the direction of water flow, the exposure time is proportional to the length of the lamp. In the UV disinfection process, water is purified as it runs through a stainless steel chamber (also called a “reactor”) that contains a special UV- producing lamp. Because of the wave-like nature of light, if a blue light therapy product peaks around 420 nm or below, it is going to also have a certain amount of UV in it. It filters large areas, 400 square feet, is quiet, and does the most. UV light is dangerous to humans. How UV Light Works for Curing Gel Nails. So you have seen these color filters (or gels as they are also called). There are no such limits on pulsed UV lamps. Because the typical LED light does not produce UV rays, for the bug traps to work by emitting UV light, they would have to use specific LED bulbs. ALWAYS wipe down exposed surfaces with a proper decontaminant PRIOR to turning on the UV lamp. The SODIS method is recommended by the WHO, UNICEF, and the Red Cross, and all it requires is sunlight and PET bottles (glass doesn't work as well). Most gels cure well in wavelengths of 340 to 380 nanometers (nm). Yes, PhoneSoap is completely safe for your phone! PhoneSoap doesn't use water or chemicals – it uses UV-C light. UV LED Black Light, HouLight High Power 10W Ultra Violet UV LED Flood Light IP65-Waterproof (85V-265V AC) for Blacklight Party Supplies, Neon Glow, Glow in The Dark, Fishing, Aquarium, Curing 4.



Blue Light Safe and Effective. Mini UV Black Light Lamp, LW UVL-4. There is a filter by GAM Colour No 1510 called UV Shield which filters UV in the range 300 -360 to virtually zero, but will allow UV between 360-400 at up to 20%. UVC light is part of the ultraviolet light spectrum and emits a high frequency of UV light that makes it extremely effective at killing bacteria, viruses, mold and other pathogens. UVB, the chief cause of skin reddening and sunburn, tends to damage the skin's more superficial epidermal layers. Why Are UV and LED Different? Gel nail polish is cured by ultraviolet (UV) wavelengths hitting the molecules called photoinitiators in the gel and activating them. The UV lamp is enclosed in an irradiator which includes a 19-point stepped ellipse high-gloss reflector to capture and redirect UV energy back to the substrate from the back and sides of the UV bulb. We recommend a preliminary prescription for the UVB treatment method; we can offer only an informative guide of using UVB lamp. Does UV-C replace filters? No, a UV-C fixture is an air conditioning component that is in addition to other system parts. Wear a pair of UV-opaque goggles or glasses when working with a UV lamp, as the light can be damaging to your eyes. Today, doctors don't use UV light to treat acne. Includes: The lamp,its cord, and all 4 bulbs in great working condition. The exposure time is accounted for by the flow rate of the water through the UV chamber; while the light intensity is primarily accounted for by the design and quality of the lamp. As a result, many viral and bacterial diseases respond to UBI therapy. Nearly all of the light of good black light should be in the UV portion of the spectrum, with very little visible light. Treatments are done in a doctor's office or psoriasis clinic or at home with a phototherapy unit. How and when to use suntan lotion For it to work effectively, suntan lotion should be applied 30 minutes before exposure to the sun.



Unlike human eyes, which require a black light to see the ultraviolet reflectivity of Jimi Hendrix posters and lava lamps, fish eyes—at least those of many predator species—can see reflected UV light naturally. Ultraviolet spa disinfection units emit a high intensity germicidal light ray that alters or disrupts the DNA or RNA of targeted organisms such as algae, bacteria, and protozoa. It uses these light waves to determine the material that emitted the energy, or to create a frequency spectrum. During the fall of 1996 all the AHUs in the building were inspected. The simple explanation on how the best uv light for gel nails works is to compare them to hand or hair dryers. However, a better question to ask is whether zappers are effective at killing the most annoying bugs. Most sunscreens do not protect against UV-C light. How Does a UV Lamp Work? UV lamps contain a small amount of mercury, either in a free state within the lamp tube, or imbedded within the lamp tube's surface. Farmers Experiment with Milk Treated with UV Light Instead of Pasteurization Print Friendly Several farmers in the United States and other countries are experimenting with treating milk with ultraviolet light instead of pasteurization, for feeding calves on the farm. Sunglasses also remove a lot of visible light, making them appear dark. It is interesting to note how many methods are developed today with one of the historic 214/254/280/365-nm wavelengths, mainly from tradition rather than a. The UV rays pass through the outer wall of a bacterium and damage its DNA, making it impossible for it to mutate or reproduce. They sit inside the aquarium partially or completely submerged in water. Phosphors hit by UV light become excited and naturally fluoresce, or in other words, glow. One discreet type of tattoo a person can get is a UV tattoo, or black-light tattoo, which is mostly visible under a black light or UV light. Do not use a glass cover over the tank. UV Air Purifier.



Doug Grossman from Huntsman Cancer Institute talks about varying levels of protection you can adopt to reduce your risk of skin cancer, especially in Utah, where the high altitude intensifies the UV. Some in the lighting business have stated that LEDs do not produce UV radiation. UV lights are effective, but they work in a specific range. A UV light can be shortwave or long wave UV most likely they are what are called blacklight UV or Wood’s lights. Phototherapy involves exposing the skin to ultraviolet light on a regular basis and under medical supervision. Ultraviolet Light: Benefits of Inspecting Artwork with a Longwave Ultraviolet Lamp (UV Lamp) An ultraviolet lamp is essential in evaluating all forms of artwork for their condition and age. To learn more about UV-curable ink technology and how it is. I was just wondering if anyone know how long does it take for a uv sterilizer to clear an algae bloom. The SODIS method is recommended by the WHO, UNICEF, and the Red Cross, and all it requires is sunlight and PET bottles (glass doesn't work as well). They sit inside the aquarium partially or completely submerged in water. All US denominations, except the $1, have a UV stripe embedded in the banknotes paper / fabric. The UV light is converted into standard visible light using a phosphor coating on the inside of the tube. UV water purifiers use the UV-C range because of its germicidal abilities. Unlike most other manufacturers lamps Fresh-Aire UV lamps can be handled when not lit. Somehow, Crazy Aaron (the guy who invents these amazing putties), found a way to combine putty with ultraviolet-reactive colors and phosphorescent chemicals. At the designated treatment time, sit 12 inches from the screen and focus on the work surface. These lamps are filtered. There are actually two different types of black light, but they work in basically the same way. With LED nail lamps, you can get much faster curing than with a UV lamp. The UV light that is inactivating microorganisms in water is non-visible light, therefore the blue light that you see coming off a UV lamp is not what's doing the work.



What NOT to do with UV Light! Yes, UV has benefits for plant growth, but it can still cause damage to plants and humans if not used properly. That means you attract more mosquitos and insects (some insects are attracted to the heat and color spectrum of UV light, while others are attracted to the brightness of LEDs). Sunprints are as easy as 1, 2, 3! How can you get the best results from your Sunprints? What exactly is happening to the paper when you put it in sunlight and then into water? You’ll find the answers to these questions in the step-by-step walkthrough below. But I do have some experience in several other research groups. Limitations in UV Water Systems Ultraviolet purification itself is not enough to purify water down to drinking water purposes. A fluorescent lamp puts this invisible light to work, and so is more efficient. Also, according to the SteriPEN directions, it will not kill germs in water droplets that are on the side of your water bottle or in the mouth piece. Question: How does it work?! Answer: Magic, we presume. A demonstration of the principles behind ultraviolet light, and some of the things you can see using a UV light source. How Does a UV Lamp Work? UV lamps contain a small amount of mercury, either in a free state within the lamp tube, or imbedded within the lamp tube's surface. Unfortunately, many biting bugs are not attracted to the UV light. How Does Ultraviolet Sterilization Work? Ultraviolet light is split into several different ranges: (near the visible light range) UV-A, UV-B, UV-C, Vacuum-UV (near the x-ray range). What do they do to the light? I am not going to tell you the answer. There is a filter by GAM Colour No 1510 called UV Shield which filters UV in the range 300 -360 to virtually zero, but will allow UV between 360-400 at up to 20%. They offer a powerful light that will brighten any night. The operation of an optically active substance has the following effect: the light at the back of the screen becomes much less visible. UV-C light is able to penetrate the cells of microorganisms and disrupt the structure of their DNA molecules (Figure 3).



The UV-B range is what causes sunburn on humans. UV light is part of the electromagnetic spectrum and ranges between 100 to 400 nanometers. These UV marks are created through the use of non-visible dyes that are only visible under UV light. Never look directly at, touch, or expose skin close to the UV-C light. Make sure that all painted surfaces of the item will receive even exposure to the lamp. That is why you might think of a heat lamp as a "red" light bulb. The water with the bacteria/algae passes over the bulb (or around the bulb if a quartz sleeve is used) and is irradiated with this wavelength. The appearance changes drastically when placed directly under a UV light, producing a fluorescent appearance that is easily visible to the human eye. Your teeth do the same thing! The lamps are sometimes called "blacklights" because we can't see the UV coming from them. There are florescent black light bulbs, and there are the newer, more common LED black light bulbs. So, can UV black lights work for detecting bed bugs? Sure, they can. To help clear up the subject, NAILS has highlighted the biggest differences between the two so you can be better informed on lamp purchases and maintenance. It could be very intense and brighten those incandescent lamp counterparts. One theory why highly UV reactive colors like chartreuse are so effective is that in some way they mimic blood in the water. What is UV Disinfection System and How Does it Work? UV Disinfection System is an extremely effective way to combat microbial contamination in water. How Do UV Sterilizers Work? There are all sorts of equipment that could be used to assist maintain the aquarium, each designed for a specific purpose. How Does a UV Sterilizer Work in an Aquarium? A UV sterilizer acts via a fluorescent bulb which emits light of 253. While you will be able to apply gel nail polish without a UV light, the other "processes" of drying are long and will not give the quality results you expect. , phosphor or quartz,) this light may be blueish or may not be visible to the human eye. Where does it come from? The sun is a major source of ultraviolet rays.



It is claimed to consume much less power. So far we knew up to the UltraViolet light generates inside the Fluorescent lamp. The globes generally have a working life or 12-18 months, after this period they might look like they work but the UV they are emitting is not intense enough to treat the water. What It Does. Similar to EtBr, GelStar is a potential mutagen, and is therefore considered hazardous. These UV marks are created through the use of non-visible dyes that are only visible under UV light. What is a UV Light and Why Does My AC Need One? February 16, 2016 / Joe Massa / Air Conditioning , Household Tips / 0 comments Ultraviolet light is a type of electromagnetic radiation. Then, it is used by simple sitting in front of the Happy Light device closely, with its lights on and your eyes open. When the photoinitiator is exposed to the proper UV light wavelength and intensity, it gives off a particle called a free radical. The area between 280 and 100 nanometers is UV-C, also known as germicidal light. It falls in the region between visible light and X-Rays in the electromagnetic spectrum. UV curing is adaptable to printing , coating , decorating, stereolithography , and in the assembly of a variety of products and materials. If Nilsson could truly get inside the head of another animal, “birds would be interesting,” he says. Does a UV light on a furnace really reduce allergens & mold? How does it differ from a HEPA filter? I've looked up UV furnace lights online and found conflicting results. When you irradiate cells with UV-C from a germicidal lamp most of the damage to DNA is in the form of pyrimidine dimers. 7-nanometer wavelength. Although we see sunlight (or white light) as uniform or homogeneous in color, it is actually composed of a broad range of radiation wavelengths in the ultraviolet (UV), visible and infrared (IR) portions of the spectrum. The UV lamp is usually placed downstream of a filter in a portable air purifier.



So, while UV light (specially A and B) from the sun harms our skin, it's actually a different but closely-related type that is used to clean the air. The CND UV Lamp and OPI UV Light are the best UV nail lamps you can find. In a neon lamp, the light produced is red; in a mercury lamp, it's a colder and bluer light; in a xenon lamp, it's a much whiter light not that different from natural daylight (sunlight). Short answer: Modern photochromic glasses, usually made of plastic, contain carbon-based molecules that change their molecular structure when UV light strikes them (and thus they absorb more light) and become dark. When you look through a UV filter, the thin, clear piece of glass inside a plastic or metal ring doesn't seem to block any light at all. Yes UV even a cheap one can work. Spectral lamp output is a subject too often left in the hands of the lamp supplier. Annual replacement of the bulb(s) is recommended. UV light comes in a few different flavors. UV readings are only reliable when comparing the current reading to the original reading for the same lamp. These UV light waves are also referred to as the Germicidal Spectrum or Frequency. The higher we climb in altitude, the more exposed we are to the sun's rays. So far we knew up to the UltraViolet light generates inside the Fluorescent lamp. Therefore, it is possible that despite advertisements to the contrary, the LED light in your bug trap is not producing the ultraviolet light necessary to attract bugs. Under the ultraviolet light of a black light, dried urine crystals are easy to see. But Ultraviolet (UV) lights can be used in a variety of applications, including air purification. Light is produced when neon atoms gain enough energy to become excited.



UV light comes in a few different flavors. The urine will glow in the dark using a blacklight (longwave UV light). A UV Secret Revealed. The type of UV light emitted depends on the pressure inside the lamp. Ultraviolet (UV) light is a form of light, invisible to the human eye, that exists on the electromagnetic spectrum between X-rays and visible light. This increases your ability to detect the animal urine or scorpions with more efficiency. This project is continued from How to Install a Honeywell Ultraviolet Light Treatment System - Part 2. As late as 1944, most scientists thought that proteins carried the genetic information. UV light has three wavelength categories: UV-A, UV-B, and UV-C. Today, deuterium lamps are used in most UV detectors because of they provide an almost continuous spectrum of light over the 190–400 nm range most commonly used for LC detection. We get to learn more about how to use a UV sterilizer in an aquarium today. Frequently Asked Questions - Whole Home Unit Where Do I install Swordfish? Swordfish can be mounted on your return air duct where it will kill most of the micro-organisms passing the lamp, and they will be trapped in your replaceable dust/allergen furnace filter. Phototherapy involves exposing the skin to ultraviolet light on a regular basis and under medical supervision. What do UV rays do to the skin?. Length of the lamp - when the lamp is mounted parallel to the direction of water flow, the exposure time is proportional to the length of the lamp. UV light will only travel in a straight line so any shadow or obstruction will reduce its efficiency. In addition, although your eyes can't see the UV light as it leaves the black light, some of that UV light that gets reflected back to your eyes after hitting the phosphors now has less energy and falls within the visible range. How Does A Uv Lamp Work.