Prism ballast and Philips 3100K or 4200K combo. Ballast safely and efficiently drives 315W ceramic metal halide lamps. Variable voltage 120/240V. Low frequency 50/60 Hz, square wave type. End of Lamp life, short circuit, open circuit, ignition failure and thermal protections for safety. 120v power cord included. 240v power cord sold separtely. Choice of 3100K or 4200K Philips MasterColor CDM-TMW Elite 315W/942 CMH Lamp.
