Rubber-armored sleeve over aluminum body. Includes (2) 3-volt lithium batteries and spare bulb. 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.