Alright me and a friend are attempting a closet grow using CFL light bulbs. The closet is 30in wide 24in deep and the box is going to be 4ft high. Initially we plan to grow 5-10 plants at least until flowering stage to distinguish which are male and female then weed them out depending on space. My question is as far as the lighting goes how many watts are necessary for such a small growing space. Right now we have two CFL bulbs one being 20w(1200 lumens) and the other 26w(1600 lumens). We were planning on buying two more 42w bulbs will this be sufficient to grow roughly 3-4 decent sized healthy female plants?
Below are some pictures of the closet so you have an idea of the space we're working with.