Xtrasun CMh Lighting SystemIf you want a quality 315W ceramic metal halide system at an affordable price, the new Xtrasun CMh systems are the ticket. These kits combine our XT315AW reflector and cordset with an XTE3150 CMh ballast and premium 315W lamp to create a highly effective horticultural lighting system. The XTE3150 CMh ballast features low frequency, square wave technology and multi aspect protection circuitry. It is also versatile, as it allows use with 120V, 208V, and