Grow Light Ballasts
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Xtrasun
Xtrasun 1000W 120/240V HPS/MH Conv Ballast
An Xtrasun convertible ballast means extra flexibility for your gardening. Use halide for growing, then once plants have started, switch to sodium bulbs for flowering. Features Convert from sodium to halide and back Dual voltage Works with Hydrofarm...$128.73$205.99$135.73