It a lil too early for you to start flowering wait until the plant is at least foot tall. When you buy cfl's look for the the one with the most watts.. like a 23 watt cfl will produce a 100 watts of lights.
the only bad thing about cfls is that they dont produce alot of lumens, but there good for the price.. At wally world you can get a 42 watt cfl that will give you 150 watts and there only like 10 bucks

:rastasmoke: