The Dedolight Basic 4-Light Kit is based on the self-contained 150W, 120V DLHM4-300 Dedolight. The DLHM4-300 works with a built-in electronic transformer dimmer. Using 24 volt/150W lamps and powered directly from a 117 AC power source, this version of the Dedolight head has a color temperature of 3000°K. The DLHM light offers tremendous lamp economy and dependability, with a typical 150W lamp lasting over 1000 hours. In contrast to the older DLH2, the DLHM should not be operated upside down for extended periods. This kit also includes barndoor sets, a clamp, wall holder, bulbs, light stand, plastic accessory box and hard kit case.