buggin69
Active Member
I'm pretty sure I've read that you can use a 600w or 400w bulb (HPS) on a 1000w ballast and it'll work fine. As in you can always go down but not up or you'll burn up the ballast. First, is this correct so far.
If that's correct could I wire two 400w lights to one 1000w ballast? like at the bottom of here http://www.onlinepot.org/grow/wiringlights.htm
If that's correct could I wire two 400w lights to one 1000w ballast? like at the bottom of here http://www.onlinepot.org/grow/wiringlights.htm