Convoy&reg;UV Ultraviolet Flashlight Blacklight, Pets Urine Detectors Dogs Stains Detector Cats Odor Detector, Find Stains on Carpet, Rugs (12 Ultraviolet Leds) Convoy Blacklight LED flashlight SHOW DRIED URINE&STAINS of dogs\cats\small animals on carpet\rugs\clothes, food stains on floor EASILY SPOT Scorpions, Authenticate currency,driver license,official identification cards,passports BRIGHTER with FAIRLY FOCUSED OUTPUT: Emits 395nm wavelength with 12 top quality ultraviolet led ligh Batteries: 3  AAA batteries last up to 5 hours for this UV flashlight(Not included)