Alldaymall F-881 395-410nm UV Inspection LED Cat-Dog-Pet Urine Blacklight Flashlight with 18650 Protected Battery and Wired Single-Slot Charger Kit UV Inspection, a must if you have carpet and pets Checking ID Currency Passports Checking fluorescent minerals and artificial materials Shock Resistant & Water Resistant design, well made and bight light Power by: 1 x 18650 rechargeable battery