Revolutionary brand new design from CoralVue. LumenBrite III reflectors are made from mirror finish German Aluminum with 95% reflection rate. Octagonal Design with total of 25 Optical plains for maximum reflection rate. Up to 16% more efficient than any other similar designed reflector on the market. Adjustable socket assembly allows for use with 175, 250, 400, 600 and 1000 watt lamps. Patent Pending. Dimensions: 16" x 16" x 7" H