We put together this quality metal clamp light with our 12V DC 18 LED bulb. These new 12V LED bulbs contain 18 super bright white LED's. Uses only 2 watts of energy. Approx. 60,000-hour life. Output 40 lumens.Plugs into standard female car light socket or into the DC socket on our Xantrex Power Packs.Heavy duty coil cord extends to 12 feet.