Or get a digital ballast and use either without having to switch anything but the bulbs.
doco Reviewed by doco on . Metal Halide or Hps or both Ok I thought I was on the rite path and decided to go with a 400w HPS. Then I did some more reading and heard its better to start your young ones with a Metal Halide light during veg and then switch to the HPS for the flowering. Then I read this post and it only threw me off more pH Water - See More Buds. From what I got from it, HPS is the way to go all the way? So my question is, would it better to go with Metal Halide light for veg and then a HPS for flowering, or should I just use Rating: 5