
Featuring a 500mW power ultraviolet light, the Nitecore TUBE-UV Keychain Light can be used for identifying currency, ID cards, verification marks, and fluorescence activation. Easily recharge the light with the integrated micro-USB charging port for a maximum runtime of 1 hour.
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Pro Tip:
Ultraviolet is a type of electromagnetic radiation with a wavelength from 10-400 nm, shorter than visible light but longer than X-rays. UV makes certain substances “fluoresce” because they absorb the UV and re-radiate the energy at a longer wavelength. It is what makes black-light posters glow and skin tan.