The Streamlight Stinger is 7.4 inches long and is made of black machined anodized aluminum. It features a 3.7 Volt, 6 watt xenon gas filled, bi-pin bulb with candlepower up to 15,000 and a runtime of 1 hour of continuous use between charges. It takes a 3.6 Volt 1.8 amp Ni-Cad battery (not included). The flashlight only weighs 10 ounces!