Im relatively new to growing.....and started myself with info and diagrams gleaned from this site. I Use the 400 HID and have a pretty decent 2nd generation taking shape. It works for me. There are so many variations this amazing weed can grow its almost silly to debate which is the best......an old neighbor of mine actually did this amazing marijuana banzai trees type of thing. He clipped the plants down real small and fancy looking and harvested them out of his window. Amazing plant.