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600 Watt Hydrofarm Ballast
I have 3 600 Watt Hydrofarm Ballasts that are the Powerhouse style. They all work and are in good condition. They will run on 120V or 240V. They are for High Pressure Sodium lamps. I only have the 240 Volt cords for them, so you`ll need to get 120V cords if you want to run them on regular outlets.