Yea when using CFL you wanna go by actual watts, also just a CFL goto tip 100 actual watts for the fist plant, and 50 watts additional each extra plant but more is always better, and that doesn't mean put a 100watts on your seedling, just when they get bigger, so the light you have for now is okay, but your going to need more before you know it, because they grow like weeds ;^)