My new grow is 15 plants topped once, lst'd and in 3 gallon grow bags. With lst and proper pruning I can very easily grow this many plants ina 4x4 area. I have a 430 watt son agro bulb going and a 270 watter. This gives me 700 watts in a 5x5 area lined with panda film, and the plants are in a 4x4 square in the middle. From what I read 700 watts is enough for a 4x4 area, had no problems my last two grows. This time I was thinking of adding two of my cfl clusters I made (extension cord spliced into lamp socket with bulb splitters) each one of these cfl clusters has seven 23 watt bulbs which is about 150 watts of cfl light. If I hang two of these in there, is it worth it? CFL light is not HID, I know it would help, but just wondering how much