SyndeRay 1000 Lumens Waterproof Tactical Flashlight 250 Yard Long Range Throwing Hunting Light with Remote Pressure Switch & Barrel Mount 1000 lumens White light output produced by Cree XML -T6 LED Material: 6061T Aluminium, brand new, high quality Light throw distance: Approximately 300-500 meters . Powered by: 1 x 3.7V 18650 battery (battery not included) Designed to mount on certain hand pistols, rifles and shotguns with proper mounting equipment.