Now you can use a DE Double Ended 630-Watt CMH Ceramic Metal Halide Lamp in your existing DE double ended reflector with a standard mogul socket. Our Hydro Crunch 630-Watt DE CMH ballast allows you to convert any existing DE double ended light reflector with a standard DE socket to use with a 630-Watt Double ended Ceramic Metal Halide Lamp with our 630-Watt DE CMH ballast. Our Hydro Crunch 630-Watt CMH Ballast comes with 8 ft. 120-Volt power cord and 240-Volt adapter included for variable voltage 120/240V. No daisy chain feature. Low Mains frequency 50/60 Hz, square wave type. End of Lamp life, short circuit, open circuit, ignition failure and thermal protections for safety. ETL Listed. 2-year warranty. How it works- First, attach a 630-Watt DE CMH lamp into any standard DE reflector and plug reflector cord into the ballast. Color: White. Material: Aluminum.