CYCLOPS, POSEIDON REMOVEABLE HEADLAMP SKU: CYC-HLP2000 Light Source: 20W CREE XHP5.02 LED * 1 Power Source: 21700 Battery * 1 Weight: 220 grams ( inc battery ) Finish: Anodization Switch: single click 40%-15%- 3%- off, Long press to launch 100% which last 40 sec or last until next click on the switch double press strobe IPX4 With magnet Performs 2000 lumens(100%) Light range up to 200 meters (100%) Runs consecutive 5 hours(40%)