CMH 315W Digital Ballast (brand varies) Heatmat (same insides)*

(same insides)*

One main controller box

UL listed for safety

Built-in 'tip-over' switch defeats gas source in case generator should accidentally fall

and soil growing mediums

CMH 315W Digital Ballast (brand varies) Heatmat (same insides)*The newest generation of the 315w CMH ballast was developed to optimize the output of our 315w CMH lamps. Our lamp and ballast are tuned to work together at over 99% efficiency when operated together, you will receive fewer color shifts, lower lamp temperatures, and less frequency humming. FEATURES CMH lamps Soft Start stabilizes start up loads and extends lamp life & performance Low frequency (<200 Hz), Constant output 6 120VAC power cord provided