Sylvania 47659 - High Pressure Sodium Ballast Kit | LightBulbs.com
iPower 6-Pack GLBULBH1000X6 1000-Watt Super HPS Grow Light Bulb for Magnetic and Digital Ballast,140,000 Lumen, Best Lumen-per-watt-per-Dollar Ratio on The Market : Amazon.ca: Patio, Lawn & Garden
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Wiring 1000w HPS Core and Coil Ballast - YouTube
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