Quote Originally Posted by bejay
before you go hacking on your ballast to install a switch would suggest you try just using the hps for veg and if you have got a mh conversion bulb well then use it but they are expensive, many will use a hps throughout the grow veg and flower, you wont notice that big of a difference between vegging with a mh or hps.
I don't accually have a ballast as of yet. I'm trying to decide if I should get a kit or one that's already wired and ready to go.