["Reveal Dry Stains: LE black light is perfect for food stains and pet urine stains on rugs carpets and other unfavorable spots that you cant see with your naked eyes. Make sure the surface is completely dry the flashlight can be detected." Wide Applications: LE led black light is a perfect tool for examining the surface of banknotes and identifing counterfeits of official documents and some important card such as the driving licenses and social security card. UV light can also used to tell whether the comestics contain fluorescent whitening agent or not. Waterproof Material: IPX4 rating material is adopted in LE blacklight. This is a waterproof material that can protect your mini black light from splash sweat heavy rain or snow. Durable: 9 LEDs 395nm ultra violet led flashlight has the life span of more than 15000 hours durable high-quality leds are adopted in this blue light flashlight. Batteries Included: 3 x (AAA) Batteries Included so you can use it right away. Built as the height of 3.86 inches the diameter is 1.06 inches this portable black light can be taken anywhere or easily stored in your pocket for the small size.]