1Multi Purpose: UV Flashlight is more widely used and is suitable for the detection of fluorescent agents, anti counterfeiting codes, scorpions, cat moss, etc. 2Battery Powered: UV light is powered by 3 AAA batteries (not included), low power consumption, no need to replace batteries frequently, energy saving and environmental protection. 3Sturdy Shell: All made of aluminum alloy shell, sturdy and shock resistant, waterproof tail rubber ring, waterproof switch button, can be used in outdoor rainy weather (do not directly infiltrate water). 4Compact and Portable: UV black light flashlight is compact and easy to carry, you can easily put it in your backpack or even your pocket, it won't take up a lot of backpack space. 5395 Nanometers Wavelength: UV blacklight flashlight produces 395 nanometers ultraviolet wavelength. Special texture designed to prevent sliding, reduce the danger of dropping