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An HID (High Intensity Discharge) ballast is a remote piece
of equipment that connects between the electrical outlet and the grow light
reflector.
Its job is to start and control the flow of power to high
intensity discharge lamps connected to the reflector.
In metal halide systems, it is composed of the transformer,
capacitor and connecting wiring.
High sodium sodium systems require an ignitor in addition to
the transformer and capacitor.
All 1000W digital / electronic ballasts
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