51 LED UV Scorpion Detector Hunter Finder Ultra Violet Blacklight Black Light Flashlight AA Covers a large area without loss of UV light intensity Rugged and durable  shock resistant. Aluminum construction with knurled grip. O rings for water resistance (not submersible) Great for use in hunting scorpions and other insects, detecting bodily fluids, which fluoresce when exposed to UV light, viewing fluorescent inks (invisible ink), searching for minerals outdoors, checking for counterfeit paper money, leak detection, inspecting glass for cracks and other defects, inspecting hotel rooms, rodent detection, checking for coolant leakage (such as Freon), finding food and pet stains on carpeting and other surfaces, and more Operates on 3 AA batteries (not included) Use of UV protective glasses is strongly recommended. Never shine light into any persons eyes