High performance: Emits 395nm ultraviolet (UV) wavelength using 9 UV LEDs Versatile: The mini UV flashlight is perfect for revealing dry dog, cat and rodent stains as well as undesired spots invisible to the naked eye. It can also spot scorpions and check passports, driver’s licenses or other official documents. Safety Helper: It can help you find fluorescent whitening agents contained in baby clothes or cosmetics and protect you co.ukom fluorescent agents. Power: Powered by 3*AAA batteries (not included) GREAT DESIGN: Shockproof and waterproof design, well-made and well-lit. product description feature: 9 LED 1 Mode UV Black Light Flashlight Up to 10,000 hours of service life Aluminum body, light weight Great for checking notes, credit cards, fluorescent ink (invisible ink), broken glassware, and even crime scenes Specification: Number of LEDs: 9 super bright LEDs Switch: Tail cap click on/off Voltage: about 3.6V - 4.2V Width: 395-400 nm Power: 3 AAA batteries (not included)