Cali Ballast Energy Station 1000w, 600w, or 400w Lamps - The Grow Shop Ltd.
Ballast CMH 315W CDM Dimmable - Calitek + super Par 5%
EnergyStation – 1,000 Watt Cali Ballast by Plantmax Dimmable Ballast for hydroponic, Indoor Grow. Grow System for Indoor Grow, hydroponic, Horticulture, Personal Growing : Amazon.ca: Tools & Home Improvement