Because UV flashlights emitting at wavelengths 365 nm or higher are emitting in the UV-A range, they can be thought of as being less harmful than the UV-B wavelengths. Generally speaking, the overall amount of UV light emitted from a UV flashlight is also much less than what you would find outdoors on a sunny day.
What can a UV flashlight be used for?
UV flashlights enhance your ability to observe and identify risks, especially bodily fluids. Since fluids like blood and urine are a biohazard, it's important to know when they are around; under ultraviolet light, these fluids glow so you can spot them in an instant.11 Oct 2021
What is better 365nm or 395nm?
The main difference is that the 395 nm LED emits much more visible light than the 365 nm LED. The 395 nm LED emits strongest at 395 nm (as defined by the term peak wavelength), but it also emits quite a bit of energy at 400 nm, and even 410 nm.
What is the best UV wavelength?
Therefore, we would typically recommend a wavelength of 365 nm for most blacklight applications where maximum fluorescence is desired. However, there are some reasons you may want to choose another wavelength. For UV LEDs, the general rule is that the shorter the wavelength, the higher the price.
What is 365nm UV light used for?
365 NM is the standard UV light source when people refer to black light. When in doubt use one of our 365 nm black light energy for fluorescent items. Some dyes and pigments are able to absorb higher wavelength but generally speaking 365 nm is considered the generic "black light" designation.
Is artificial UV light harmful?
The effects of short-term exposure to UV from artificial light are negligible. Long term exposure to low levels of UV radiation add a very small percentage to the lifetime risk of developing squamous cell carcinoma (SCC) but could lead to an increase in the number of SCCs in the population.
Is 405nm UV light harmful?
405nm visible light is not as quick-killing as harmful UV light; it re- quires a longer exposure time to accomplish the task. With that said, the 405nm wavelength does not affect the heme porphyrins that exist within humans, and secondly do not cause any cellular damage.
Can I use UV flashlight to cure resin?
Why We Think It's Great. The Letion UV flashlight is an ideal addition to your UV resin toolbox because you can quickly move the light to cure large resin projects that don't fit in your curing box or small countertop UV lamps.5 May 2021
Can I use a UV light for epoxy resin?
Novel method for curing of epoxy resins uses local UV flashes to initiate a chemical cascade. It may appear to be a nondescript, transparent, viscous liquid, but all you have to do is irradiate any part of it briefly with UV light and it changes completely.30 Sept 2016
What wavelength is best for curing UV resin?
What is the Wavelength Range of UVA? The wavelength for UVA spans 320 nm to 395 nm, making it the longest UV wavelength. UVA is used for general UV curing and is responsible for most of the adhesion properties for the UV formulations.
What type of UV light is needed to cure resin?
UVA is used to harden thicker resins or resins that have white or coloured pigments mixed in them. For a number of years, dentists have used UVA to quickly set small fillings made from a UV-sensitive resin.29 Jul 2008