SecurityIng Mini LED UV Ultraviolet Blacklight Flashlight for Money Detector, Leak Detector, Cat-Dog-Pet Urine, Spot Scorpions(18650 Battery Not Included) Perfect for pet urine, stains, hunting scorpions, searching for minerals, hotel room inspection, rodent contamination, bed bugs, leaks, counterfeit money, authenticate banknotes, driver license, official identification cards, passports etc. Also designed to mount on certain hand pistols, rifles and shotguns with proper mounting equipment. Waterproof, dustproof, shockproof, rainy days also can be used. Energy saving and low power consume. Made with high quality material aluminum alloy, with a pocket clip for easy carry. Power Source: 1 x 18650 3.7V Rechargeable Battery. (Not Included)