WindFire WF_502B_UV 1 Mode 395-410 nm High Performance UV-Ultraviolet LED Blacklight Flashlight 18650 Rechargeable Battery Powered Money/Leak Detector and Cat-Dog-Pet Urine Detector (No Battery) 395-410nm uv flashlight, a must if you have carpet and pets to find stains on carpet, rugs Checking id currency passports, checking fluorescent minerals and artificial materials Shock resistant & water resistant design, well made and bright light Power by: 1 x 18650 rechargeable battery (not included) 1 mode uv led flashlight kit, switch: Tail-cap press on/off