Try to keep those lights like 2 inches from tops, u also need more lights, with cfls u can get them really close like 1 or 2 inches away from tops. Or insted get a 400 watts hps. They are cheap maybe like a hundred dollars. If not those buds ain't gonna develop right. U will be a little disappointed with the end product if u dont get at least 300 watts per plant with cfls, been there done that!!! Lool. Thats why i invested in the 600 hps and i dont regret!! Hope that helps somehow. Toke on ===~~