Featuring 9 F5 ultraviolet LED lights with a wavelength of 395nm. The ABS plastic reflector cup helps to focus light, providing a more concentrated beam of light, allowing you to see even the smallest details. These compact flashlights are made of high-quality aviation aluminum alloy, durable and lightweight. They are also waterproof, with a range of up to 50 meters (164 feet). These flashlights are equipped with comfortable rear rubber button switches, making them easy to operate and easy to carry with you no matter where you go. Widely used: These flashlights are very suitable for pet urine testing, forgery testing, dry stains, identification of counterfeit banknotes, and more. Battery powered: Our flashlight uses 3 AAA batteries (not included) for easy replacement and maintenance.