WindFire Zoomable 365 nm UV Ultraviolet LED Flashlight AA or 14500 Battery Blacklight Torch for Detecting Fluorescer in Cosmetics and Baby Stuff, Counterfeit Banknotes, Scorpions, Minerals, Diamond 365nm UV light is the best choice for use in document verification, counterfeit detection, photograp Aircraft aluminum body - double-anodized for corrosion resistance with weather-proof silicon seals. Professional-grade flashlight produces 365 nm (nanometers) ultraviolet wavelength. An adjustable focus allows the user to choose between a small point of high intensity or a larger area Powered by 1 x AA /14500 rechargeable battery (not included)