Hydrofarm SGO100C SG Lite Switchable MH/HPS 1000W Magnetic Ballast
Quantum II Ballast Series 1000W Digital Electronic Ballast HPS/MH-1000W 240V | eBay
SG Lite Magnetic Ballast HPS 600w
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Iluminar Remote MH/HPS DE Ballast 1000 Watt 277 Volt
400W Mh/HPS Electronic Ballast Dali Dimming - China 400w Electronic Ballast and Horticultural Electronic Ballast
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HPS/MH Electronic Ballast – SunPlix Grow Lighting
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Hortilux Ceramic HPS Lamp and Ballast Kit, 600W, 120/240V
