Xtrasun 400W 120/240v HPS/MH Convertible Ballast *DISCONTINUED*
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. With the Xtrasun Convertible Ballast, you'll have Xtra flexibility; Use halide for growing and sodium for flowering. Convert from sodium to halide and back Dual voltage 120/240 Works with Hydrofarm reflectors and most others Aluminum fins for more cooling surface 5 year warranty on ballast electrical components