Power Plant 400 Watt MH Lamp Retro Runs on HPS gear / Hydroponics / Metal Halide
Power Plant 400 watt MH Superveg Grow Lamp
The Powerplant Metal Halide retro-fit lamps run off HPS control gear and are ideal for vigorous vegetable growth. There is no need to have two different ballasts. simply use the Powerplant Metal Halide retro lamp during vegetable growth and change to Powerplant super High Pressure Sodium lamp for flowering, all using the same HPS ballast.
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