E Ellie Active Member Dec 6, 2007 #1 I have been using a 250W grow light. I had a good crop from my grow but feel that it could have been improved with more light. I would like to change to a 400W - would I need to buy a different ballast or can I just change the bulb?
I have been using a 250W grow light. I had a good crop from my grow but feel that it could have been improved with more light. I would like to change to a 400W - would I need to buy a different ballast or can I just change the bulb?
