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About Flashlight UniversityFlashlight University was developed to keep consumers informed about new products, changes in flashlight technology, and fixes to common flashlight problems. Since many insects can see light in the UV part of the spectrum, flowering plants have evolved patterns to attract pollinators that cannot be seen by human eyes.
UV, or ultraviolet, light is an invisible form of electromagnetic radiation that has a shorter wavelength than the light humans can see. The term “ultraviolet” means “beyond violet.” In the visible part of the spectrum, wavelength decreases — and the energy of the electromagnetic waves increases — from red through orange, yellow, green, blue and violet, so UV light has a shorter wavelength, and more energy, than violet light.
The Sun produces ultraviolet light of all categories; however, the shorter, higher energy wavelengths are absorbed by oxygen in the atmosphere, and, in particular, by the ozone layer. Ultraviolet light, specifically UV-B, is required to allow the skin to manufacture vitamin D. There are other benefits associated with ultraviolet light may that seem to be independent of vitamin D production.
Many potentially harmful microorganisms are quickly killed or inactivated by exposure to UV light.
The effects of UV light on viruses, bacteria, and parasites have led to its use in disinfecting drinking water supplies. Some substances, when exposed to UV light, emit light at visible wavelengths, a phenomenon known as fluorescence. Biologists and zoologists are quite fond of ultraviolet light as it helps them take nighttime organism surveys in the field. Many textiles used in clothing also fluoresce, and the “black lights” often used in nightclubs and at parties exploit this fact by causing clothing to glow in the dark. Many insects can see ultraviolet light and are attracted to it, so the light is often used in insect traps. Mapping the Milky Way and other galaxies in ultraviolet light allows astronomers to build up a picture of how galaxies evolve over time. Analyzing minerals — fluorescence under ultraviolet light can distinguish between minerals that look the same under visible light.
Microscopy — the shorter wavelength of ultraviolet light can resolve details too small to be seen with an ordinary light microscope. Chemical markers — substances that fluoresce in UV light, such as green fluorescent protein (GFP) may be used to study biological processes.
Photochemotherapy — this is used as a treatment for psoriasis and some other skin conditions. Very fine resolution photolithography — this is used in the manufacture of semiconductor components in the electronics industry. Checking electrical insulation — “corona discharge,” where damaged insulation on electrical equipment results in ionization of the air, can be detected by the emission of ultraviolet light. Curing of adhesives and coatings — some substances polymerize and harden on exposure to ultraviolet light. UV light is classified as light because all constituents of the elctromagnetic spectrum, which UV light is one of, are light.
Can UV bulbs be an energy source used for recharging solar powered lights same as the sun, or self producing energy by using UV bulbs for the source of the energy? This item will be shipped through the Global Shipping Program and includes international tracking. Will usually ship within 1 business day of receiving cleared payment - opens in a new window or tab.
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By clicking 1 Click Bid, you commit to buy this item from the seller if you're the winning bidder. There are a number of reasons why you might be interested in owning a black light UV flashlight. Believe it or not, one of the most common reasons why you would use portable UV lights are so that you can spot scorpions. Other reason why you may use a black light UV flashlight is in order to detect counterfeit money. Some people use them to look for body fluids, such as urine whenever they are checking into a hotel or renting a new property.
Finally, you may find these of use for validating credit cards or to check an ID; depending on where the ID originated from and to make sure that it is valid.

Having a UV flashlight around for these purposes is a good idea, especially if you find yourself doing these things regularly. As far as the different options that are available whenever you are looking for one of these items, some of the more popular options are going to be that they come in a mini variety, which can easily be put into your pocket so that you can use them at your convenience. Whenever I first got involved in the sanitation business, one of the first things that I requested that we get, were upgraded portable UV lights. One of the first things that we learned is the fact that many of the forensic portable UV lights that are in existence are not really going to be strong enough in order to take care of the job that we needed them to do. The unfortunate thing about this is, most of the areas in our units were not equipped with electrical outlets, so we needed to use a battery operated unit in order to take care of the project, like a black light UV flashlight. Of course, not all of us are going to need something this powerful, but there are going to be plenty of applications which will require something with a little bit more strength. These are capable of destroying DNA, and are excellent for cleaning up the area, such as a crime scene or perhaps even a room where a lot of bodily fluids exist.
Even though not everybody is going to need the powerful portable sanitation UV lights needed, there may be times whenever these portable UV lights are going to need to be at least powerful enough to pick up on a urine trace, or perhaps to clean areas more thoroughly.
It is probably a surprise to you that there are so many different uses for the common black light UV flashlight. It carries more energy than visible light and can sometimes break bonds between atoms and molecules, altering the chemistry of materials exposed to it. Wavelengths are measured in nanometers (nm), or billionths of a meter, and ultraviolet wavelengths range between 10nm and 400nm.
As a result, the ultraviolet that reaches the surface consists mostly of UV-A, with a little U-VB. It converts a chemical found in the skin to a precursor of the vitamin, which then forms the vitamin itself. Airborne virus infections, such as influenza, are generally spread via droplets expelled by coughs and sneezes. The more energetic UV-B is responsible for sunburn, can cause premature aging of skin and can alter DNA in a way that can lead to skin cancers, such as melanoma.
It has the advantages of requiring little maintenance, not affecting the taste of treated water, and leaving no potentially harmful chemicals behind.
Common fluorescent lamps, for example, are powered by UV light produced by ionizing low-pressure mercury vapor.
Sensitive documents, such as currency, driver's licenses, credit cards, and passports, have invisible symbols on them that light up only in the presence of UV light.
Certain birds, reptiles, and invertebrates, such as insects, fluoresce under UV, and quickly flashing a light over a small area can allow observers to count the approximate number of organisms of a given type. These lights primarily produce light in the UV portion of the spectrum, but they also produce a slight violet glow.
These may be used by entomologists to study the insect population in a specific habitat or to trap and kill nuisance insects in restaurants food stores.
Visible light is simply the segment on the electromagnetic spectrum that represents light with a wavelength perceptible to the human eye. Visible light is simply the segment on the spectrum that classifies the light that the human eye can perceive.
Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. We ask the buyers to contact us first, report the problem and receive the RMA # before returning the product. You have read and agree to the Global Shipping Program terms and conditions - opens in a new window or tab. Import charges previously quoted are subject to change if you increase you maximum bid amount.
As a matter of fact, even if you purchased it for a rather common reason there are some uncommon tasks they can be taken care of by using one of these flashlights.
Scorpions have unique properties that would make them glow whenever they were spotted in the beam of one of these flashlights. You might also want to keep a fresh supply of UV bulbs on hand, particularly if you depend on this item on a regular basis. Since I was working the units at the time, I wanted to make sure that the portable sanitation UV lights utilized were going to be able to take care of the tasks that we were working on.
Not only did we need portable UV lights in order to identify the tracks that were left by the rodents in the form of feces and urine, we also needed an industrial model which would be able to take care of the project. The portable sanitation and UV lights utilized required a minimum of a 12 V lamp in order for them to be effective. A good example of this is if we are trying to clean an area by using the shortwave UV light.
By using the UV light, you help to break things down on the molecular level and to clean things that the normal cleaners would have left behind.
By using one of these industrial models, you are not only able to take care of these jobs more efficiently but you can often do so in a way that will keep you from having to upgrade to additional units in order to take care of multiple jobs.

Regardless of whether you’re looking for a small variety to keep on hand or if you want a larger black light flashlight so that you can use it for multiple purposes, there is going to be those that are available on the market. UV light can also cause some substances to emit visible light, a phenomenon known as fluorescence. This vitamin is essential to human health, and a lack of it has been implicated in immune system disorders, cardiovascular disease, high blood pressure and various cancers. Virus particles in these droplets do not survive long if exposed to sunlight, and as a result, these diseases may not spread so easily in sunny conditions. The main disadvantage is that, unlike some chemical methods — such as chlorination — it will not protect against contamination after treatment. This light is absorbed by a special fluorescent coating, which in turn produces visible light. This is very helpful because many of these animals are mainly nocturnal and rarely if ever seen during the day.
Special posters or other works of art can also be created with the express purpose of fluorescing a certain way under a black light. They also produce a higher proportion of their ultraviolet light at the extreme end of the spectrum. If you reside in an EU member state besides UK, import VAT on this purchase is not recoverable. For products that malfunction upon arrival or that were damaged during transportation, returns are accepted for money back within 30 days after delivery. Here are some of the most common reasons why people would use a black light flashlight, and why it might be something that is handy to keep around for yourself.
If you live in an area of the world were scorpions are regularly seen, using one of these flashlights can help you to feel more comfortable as you’re walking through the house in your bare feet. Finally, you may want to use one of these items as a UV LED light, so that it will stick out on the panel. The reason why this is the case, is because we were working in an area that was commonly overtaken by rodents and it was necessary to make sure that the units were powerful enough to identify their tracking. There are a few products that are available on the market which can take care of this, but they are going to be difficult to find under most circumstances.
The Internet is the easiest place to find these, so make sure that you look for the options that you want when doing so. This form of light — which is present in sunlight — can be beneficial to health, as it stimulates the production of vitamin D and can kill harmful microorganisms, but excessive exposure can cause sunburn and increase the risk of skin cancer. There is evidence that people with outdoor occupations are less susceptible to the disease.
UV light stimulates the production of the pigment melanin, and because of this, people may intentionally expose themselves to strong sunlight to obtain a tanned skin.
Areas where new stars are forming therefore glow more brightly in UV, enabling astronomers to identify and map these areas. In case the item malfunctions or turns out to be defective, we pay return shipping cost back to our warehouse. As a matter of fact, you might just find that when you don’t have a black light UV flashlight, you will find yourself missing it once you know what it is capable of doing. Lack of sunlight is the main cause of vitamin D deficiency, and sunscreen prevents its formation. Children who spend a lot of time on outdoor activities also appear to be at less risk of developing skin cancers later in life. The effects associated with this form of light may be aggravated by the popularity of tanning studios and sunbeds, which use artificially produced ultraviolet light to cause tanning. Other possible beneficial effects include reduced incidence of cardiovascular disease, improvement of some skin conditions, and mood enhancement. All products should be returned in the same condition as when received and should include all original materials.
Initial shipping and handling fees are the costs of handling and sending of the product to customer and will not be refunded. Restocking fee 10% is applied for sealed merchandise; in some cases we may grant RMA # for opened goods.
If the product shows the signs of usage or misses substantial parts we have the right to reject the return. Also we will not be held responsible if the return package is stolen or damaged during delivery.

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