Unlike most other flashlights which are rated using lumens or candela, ultraviolet flashlights are rated using nanometers. UV light has a shorter wavelength than visible light, ranging from 10 nm – 400 nm (visible light ranges from 400 nm – 700 nm, for reference). Because of the limitations on LEDs, ultraviolet flashlights generally only range from 365 nm – 400 nm. Not all materials/substances will fluoresce under the same wavelength of light, so it’s good to know how you are going to be using the ultraviolet light to better choose a flashlight. We’ve compiled a list of our favorite UV flashlights to hopefully help narrow down your search.
The Inova X5 UV flashlight is our choice for the best all-around ultraviolet utility light. It’s compact, fairly inexpensive, and a very nice design. One great thing about this light is that it has 5 ultraviolet LEDs, so it puts out a large volume of light compared to its competition. The 5 LEDs have a nanometer rating from 365-400 nm, so it has a broad range of usefulness in making materials fluoresce. The Inova X5 UV runs on 2 CR123 primary lithium batteries which have a long shelf life, so that’s another bonus. The ultraviolet LEDs use less battery power than standard LEDs, so the run times are long – up to 85 hours for this light.
The Streamlight Night Com UV flashlight is a fairly new addition to Streamlight’s line of UV lights. What sets it apart from the competition is that it has a center white C4 LED that is rated at 115 lumens in high, so it has the functionality of both a standard flashlight and an ultraviolet flashlight. It has three 365 nm UV LEDs and three 390 nm UV LEDs, so it will work for a broad range of materials. To switch between modes, use the simple rotary dial to choose between high white (115 lumens), low white (50 lumens), and ultraviolet light. This flashlight also runs on 2 CR123 primary lithium batteries and measures 5.4″ long.
UV flashlight is widely used in: fluorescent penetrant testing, fluorescent magnetic particle inspection, fluorescent leak detection, Criminal Investigation detection, UV curing, archaeological research, mineral test, jewelry appraisal.
High power LED UV flashlights 365nm,375nm,385nm,395nm,405nm, products using 6061-T6 aircraft-grade magnesium alloy case,high capacity 3000mA lithium-ion battery,the top of the configuration to ensure that the products of high quality.
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Students can conduct investigations showing evidence of illumination from an external source such as the Sun.
DCI/1-PS4.B Electromagnetic Radiation
Objects can be seen only when light is available to illuminate them.
Students can conduct investigations showing evidence that the amplitude of a wave is related to the energy in a wave.
Students can use this tool to develop and use a model to describe how waves are reflected, absorbed, or transmitted through various materials.
Students can use this flashlight to conduct investigations about technological devices use the principles of wave behavior and wave interactions with matter to transmit and capture energy.
Students can use the UV Flashlight to evaluate the claims, evidence, and reasoning behind the idea that electromagnetic radiation can be described by a wave model.
Students can explore the idea that different frequencies of light have different energies, and the damage to living tissue from electromagnetic radiation depends on the energy of the radiation.