Specifications: Product parameters Brand Name：AloneFire Model Name：SV108 Product Material：Aluminium alloy Flashlight Color：Black LED light bulb：365nm uv led Power(W or Lumens): 3W Applicable Battery： Built-in lithium battery Charging method ：USB charging Input voltage：5V Work Mode：1mode Working time：About 1-1.5hours(The working time of the lamp will vary due to environmental factors or temperature changes.It is for reference only and not as a basis!) Dimensions：83mm/3.27in(length) x 19mm/0.75in(head) x 19mm/0.75in(Tail) Net weight:：About 36g/0.08 Lb (flashlight) Can live waterproof (can be used in rainy days), but can not dive, can not be soaked in water Application area: UV BLACHLIGHT FLASHLIGHT The Ultraviolet flashlight can be used as pet(dog/cat) urine detector/scorpion finder/fluorescent/detector/currency/license/card/passport authenticating/oil stains/leakage detector/ore/antique identification/UV glue curing/ect. (In the dark environment, UV purple light detection effect is better!)