The Galaxy LEC™ brand technology 315 ballast is optimized for cutting edge Light Emitting Ceramic brand technology. This ballast has a thermally optimized non-fan cooled aluminum housing while operating on 50/60 Hz low frequency, square wave, which makes this electronic ballast highly efficient. The Galaxy LEC™ brand technology 315 ballast operates at 120-240 Volt or 277 Volt and offers a rated life of 50,000 hours. Galaxy LEC™ brand technology 315 Watt dimmable ballast operates a 315 watt ceramic metal halide lamp ANSI: C182 at 50%, 60%, 70%, 80%, 90% 100%. This ballast comes pre-wired with a lamp cord receptacle that is compatible with all Sun System LEC brand reflectors. 906270 includes a 6 foot 120 volt power cord.