what is the real watts, not the equiv.? I am guessing it is around 20 watts which is not enough. never use the equiv. watts, only the real watts used.
That wont work, i would suggest at least 30watts a sq ft. Maybe get 2-3 more of those for lighting the sides of the plant ,more if you plan on growing the plant to a large size. I have 6 13w CFL's in a little L23in x W20in x H17in cabinet.