Features Using ultraviolet UV LED 3W high-power violet Wavelength: 395-410nm Integrated reflector cup aluminum orange peel Aluminum metal Tongshen, black oxide shell Battery: use one 3.7V 18650 type lithium batteries Tail push switch with a tail rope, easy to carry IPX-6, Life Waterproof, do not soak or use it while diving Clip-on design, can be attached to your collar Uses: money detector, night fishing, according to drift, according to the prayer beads, according to traces of forensic class of special purpose industries use UV can be used to detect fluorescent substances: wavelength 395-410nm UV blood fingerprints and other body fluids can be used, shot residue testing This section flashlight lights, the red light of the strong penetration can be issued, as a signal for help and so on. Description: LED Life: 100000hours Work Voltage: :3-4.2V Batery: 1PC*18650 battery (Battery not included) Material: aluminum Switch type: Tail press button, on/off Emitter Type: UV LED Power: 1 W Switch Type: Clicky Switch Location: Tail-cap Max Output: About 800 Lumens 3 Mode: High / Low / Strobe Working Time: About 5-6 hours Power By: 1x 18650 (Not Include) Material:Aluminum alloy Color:Black Instruction: Special needs. (For patrolling, hunting and arresting, inspecting, securing, for Martin Rescue as well as Light Shooting and so on) Outdoor activities. (For climbing, camping, seeking survival, walking, diving, fishing as well as hunting, etc.) Professional needs (For Gems-Testing, Mineral-Testing, etc.) Good preparation for your family The pictures of our flashlight are real and if there is something tinny difference, please ignore