This large UV flashlight with 100UV LEDs allows you to cover a much bigger area without losing the intensity of the UV light. The applications is perfect for inspection applications, security control, rodent contamination, hotel room inspection, and much more. Emits 395 nanometer wavelength 100 UV LED allow to cover a larger area. Makes semen stains and other bodily fluids fluoresce Perfect for outside use such as hunting scorpions and minerals Water and shock resistant Perfect for leak detection (when used with UV dye) Rugged, machined aluminum construction with knurled design Due to the intensity of this UV LED device UV protective glasses are recommended. Do not look into< this device while operating nor shine in any person's eyes. Specifications: Bulb Type: LED 390 to 410nm Bulb Life: 100,000 hrs Body Material: aluminum with "O" rings for water resistance Battery Require: 6 x AA alkaline batteries (not included) Battery Life: approximately 20 hours on 6 AA batteries (batteries not included) Switch Type: push On/Off button Head Diameter: 3.1" or 78mm Body Diameter: 1.46" or 37mm Length: 7.6" or 192mm Used for: Perfect for organic waste & pet stain detector. Mineral & scorpion hunting Hotel inspection,security checks Counterfeit passport & driver license detector Forensic analysis & counterfeit identification Warning: DO NOT shine directly in eyes. DO NOT shine on skin for prolonged periods. Package Contents: 1x 390-410nm 100 LED UV flashlight (batteries not included) Note: 1.Please allow 0.1-0.3cm differences due to manual measurement, thanks. 2.Please understand because of the light irradiation or computer display difference, so I can't guarantee photos and real color is the same.