PREMIUM 500W CMH FIXTURE B-Lite Series Premium CMH Fixtures are the preferred grow lights for gardeners of all skill levels and scale. The latest and greatest technology, this compact design, lower operating temperature, lower amp draw, and multi-watt option empowers growers to take their gardens to the next level. CMH light blends the perfect amount of wattage and spectrum to get top yield with top quality. These fixtures can be used with a 500w CMH bulb and are Controllable with the B-Lite Master Zone Controller.