CFL Quick Tips
2700K = Flowering, 6400K = Growth
Not as much light as HPS lamps, but easier to use and not as much heat
You can mix 2700K + 6400K and use it through whole grow period
Keep them close to your plants for best results
You could use 1 x 2700K bulb for whole grow (Cheap Micro Setup)
1 x 150Watt is ok for 2 – 4 plants