Practical: 395nm wavelength help detect animal urine and food stains on rugs, carpets and clothes that couldn't see with naked eye. Portable: The pocket-size UV flashlight can be carried along to detect stains in your car or illuminate minerals, body art. Essential tool for pet lovers, portable and lightweight torch, convenient to carry to anywhere. Waterproof & Impactproof: With IPX4 certification, you can use it in rainy and humid conditions. Versatile Use: Authenticate currency and official documents like drivers licenses and ID card.