400 Watt S51 High Pressure Sodium 5-Tap Ballast Kit – Green Electrical Supply
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Advance 71A8793 1000-Watt High Pressure Sodium Lamp Ballast Kit 1000W S52 HPS | eBay
Philips Advance - Single Lamp, 120 Volt, 1000 Watt, High Pressure Sodium, HID Ballast Ignitor - 64314651 - MSC Industrial Supply
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Philips Advance 71A8773001 :: 1000 Watt High Pressure Sodium Ballast :: PLATT ELECTRIC SUPPLY
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Amazon.com : Master Green Grow Light Electronic Ballast 1000 Watt HPS (High Pressure Sodium) 120/240 Volt - ETL Listed, Optimized For Double-Ended HPS Lamps, Green : Patio, Lawn & Garden
GES1000MLTAC5-5 - GE BALLAST 1000 WATT HIGH PRESSURE SODIUM (HPS): Plant Germination Equipment: Amazon.com: Tools & Home Improvement
Advance 71A7971001D Core/Coil HID Magnetic High Pressure Sodium Ballast Kit, High Pressure Sodium Lamp, 70 W, 120/208/240/277 VAC, Pulse, 1 Ballast Factor | State Electric
Sylvania 47659 - High Pressure Sodium Ballast Kit | LightBulbs.com
