The Dominator is just under 12 Inch long and produces an incredible 2,000 lumen beam of dazzling white light on high. This blinding output is the result of a state of the art LED and a precision reflector that produce an extended range beam powered by a rechargeable lithium ion battery that's regulated to maximize output and runtime. It can also be powered by twelve 123A lithium batteries, should the need arise. The Dominator, currently SureFire's most powerful handheld LED searchlight/spotlight, is an excellent choice for law enforcement, military, border security and search and rescue personnel who require maximum illumination. The Dominator features a hard anodized aerospace aluminum body with large heat dissipating fins.