I grow 12 / 12 CFL from Seed. You won't get big yields unless you have the higher wattage lights, or a bunch of the low wattage lights. I'm running 4 x 65 watt CFL's (the 300 Watt Equivalent) I just got in my 100 Watt CFL's ( i think they are the 6-8 hundred watt replacements) but any ways... the actual wattage is what your shooting for .. not the equivalent. I'm waiting on my adapters to come in the mail .. so i can change the lights from mogul to medium socket size... they are freekin huge ! 12 / 12 from seed is good if you can grow SOG... or Scrog in a small area. I'm thinking about doing a party cup grow, grow out like 20 seeds and hopefully get about 5- 8 Fems with a nice little cola per cup... you can harvest a nice ounce or two that way.