Nite Ize Radiant UV Microlight - Ultraviolet LED Keychain Light with Clip COMPACT UV LIGHT FOR PROFESSIONAL OR HOBBY USE - High powered light let's you cure adhesives, validate currency and IDs, detect blood, fluids, vehicle or HVAC leaks. Ideal for professional inspection use or for hunting, fly tying, crafting, and more. BRIGHT HIGH-POWERED UV LED - UV LED bulb has a 1,000-hour lifespan plus 365-400 nanometer wavelength and a battery run time of 10 hours. WATER AND CRUSH RESISTANT COMPACT BODY - Solid polycarbonate construction is water and crush resistant, and weighs only .35oz| 9.22g, making it a perfect UV light to keep handy on your keychain. UNIVERSAL KEYCHAIN CLIP - The Radiant Ultraviolet Microlight features a stainless steel universal clip that easily attaches to keys, zippers, backpacks, or any other convenient location.