Specification Product model: SV57 Light bulb: UV 365nm LED Material: Aluminum alloy Purple light wavelength: 365NM Purple light power: 3W Mode: 1Mode Battery: Built-in lithium battery Dimensions: 79mm/3.11 inch(Length) x 21mm/0.83 inch(head) x 21mm/0.83 inch(Tail) Weight: 55g/0.13 Lb Application area: UV BLACHLIGHT FLASHLIGHT The Ultraviolet flashlight can be used as pet (dog/cat) urine detector/scorpion finder/fluorescent/detector/currency/license/card/ passport authenticating/oil stains/leakage detector/ore/antique identification/UV glue curing/ect. (In the dark environment, UV purple light detection effect is better!) Packing List: 1 x UV Flashlight 1 x USB Cable