Ballasts are an essential tool for the indoor grower. This categpría you can find ballasts and hi download all powers. Ballasts for HPS lamps, and metal halide, 150w and 250w, 400w magnetic ballasts, 600w and 1000w.
You can choose digital electronic ballasts. These electronic ballasts allow you to change the power of light used for more efficient consumption. Some digital ballasts have also a position (and even compromise the life of the lamps) squeezes them to their maximum light output.
Here are download hi (ballasts) for all power: 150w, 250w, 400w, 600w and 1000w.
You can check prices on magnetic ballasts, electronic ballasts, dimmable digital ballasts power...