Each CFL should be nomore than a inch away from the plant! After the inch not all the lumens hit the plant. I would put 2 bulbs for each plant if you want them to grow bigger and give you a bigger yield.
bro go to home depot and buy cfs there, you can get a bunch of different ones. i suggest you go with the 23 watts and 42 watts they worked the best for me in my recent grows.