anyone ever use these? I found them on ebay. If i cut the room down a little bit more, I could get away with 2 of them.
http://www.ebay.com/itm/Sunny-450W-...=100009&prg=10413&rk=1&rkt=10&sd=161235265502
will it give me the recommended amount for all 4 sites? or just how much per plant