The flashlight and glasses has many uses: ?1?Identification of fluoresce gems, minerals and fossils ?2?Used to detect the leakage of refrigerant in automobile air conditioning ?3?Find pet stains, dog or cat pee ?4?Checking for counterfeit paper money bills ?5?Police are used to detect blood, crime scenes, etc ?6?Verify anti-counterfeiting identification ?7?Fluorescence reflection for special substances(Cosmetics, diapers, clothing, urine, lighting scorpion and other fluorescent agents detection Flashlight: Power: 6 x AA battery (not included) LED Quantity: 51 LED Light source: uv 395-400nm uv lamps Working Voltage: 4.5v