BESTSUN Wf-502b CREE XM-L T6 led Purple Light Ultraviolet LED 395-410nm UV Ultraviolet Inspection Led Blacklight Flashlight UV-Ultraviolet Led Torch with AC Charger and BESTSUN Protected 18650 Batteries for Money Detector, Leak detector Cat-Dog-Pet Urine UV Inspection, a must if you have carpet and pets Checking ID Currency Passports,Checking fluorescent minerals and artificial materials Power by: 1 x 18650 rechargeable battery ( included) Shock Resistant & Water Resistant design, well made and bight light Uses: money detector, Leak detector, use for the traces of the military police forensic