Battery Two 3 Volt lithium with a shelf life of nearly ten years. Bulb Xenon gas filled bi-pin Material Machined aluminum housing covered by a rubber armored sleeve for a sure grip; unbreakable polycarbonate lens. Color Black Weight (with battery) 4.4 ounces Length 4.9 inches Run Time One hour of continuous use Candlepower* Up to 6,500 Special Features Triple action tail cap switch; variable spot to flood focus; spare bulb included.