Homemade Growbox

This is a homemade growbox I made from plywood; the box dimensions are H-2ft;W-2ft;D-2ft. I have vent openings at top & both sides of box, I'm using a small fan for air circulation, for light reflection I'm using semi-gloss white construction paper & a sun windshield reflector; for lights I'm using 4-42w. CFL's for veg / 8-23w.warm whites for flowering when the time come, but I also have a 400w. MH system with a conversion bulb of 360w. HPS. I was trying 2 grow with CFL's bcuz of heat concern & limited space & security concern; I was going 2 let my plants only grow from 12" to 16" due 2 Height & light space; the box can hold 15 plants of the size that I'm growing, I would love feedback from people who've grown from seed 2 harvest, using only CFL thru the whole process & show & tell me the results of the density & yield at the end.