Need advice! Is my lighting sufficient? CFL Closet Grow

Hi
I have four cannabis plants growing in a closet, with a floor space of approx 20" x 16". I veged them for two and a half weeks and have just begun flowering.

The lights that i have for flowering are six 20W 2700k CFL's and two 65W CFL's: one 2700k and one 6500k.

These are not feminized seeds so presumably some will be males, and they will have to die as soon as I see their balls.

What do you guys think? Is my lighting sufficient (assuming that I will be left with one or two plants that are female).

As a person who killed 2 plants because of low light (stretch/broken stem) I can say that you can never have enough CFLs

plenty. i like that you are mixing in some blue as well. that should be enough lights to place all around and above several plants.