CFLs are the spirally ones.
Small MH is good too.
But if you have a heat problem, CFLs will contribute to it much less than a HID.
stinkyattic Reviewed by stinkyattic on . So far here is where I stand. Please feel free to go ahead at any time and add a comment. I am new to growing and am really only doing it as a hobby. I have successfully grown papaver Somniferum hydroponically using a 400 watt MH. I am currently trying to grow a bit of weed, soil based medium and have killed about a dozen plants already, four of which were at least 2 months old. As of now I have only one last little plant, which I only water about once every other day lightly. I believe that I killed my other plants by over Rating: 5