Product Description Emits 395nm UV (Ultra Violet) wavelength. 100 LED UV Flashlight shows hidden pet urine, stains and other unfavorable spots on carpet, rugs and clothes. Multifunctional. Detect some kinds of fake money, jewelries, collections and so on. Outside usage such as finding scorpions and minerals. Excellent tool for you to clean hotel room, your home or any other places that needs to be cleaned.. Essential tool for law enforcement, postal inspections, customs, medical forensics, HVAC repair and so on. 6 AA batteries are required but not included.