1stly ur gonna need the foil reflectix.. i dont think the bubblewrap style would reflect much light.. i believe its made to insulate rather than reflect visible light..ud be better off painting it flat white.. it reflects about 90% of the light back.. vs the foil reflectix witch reflects 97%... secondly i believe 3-4 sould be enough cfl's just make sure ur using the "daylight" or "cool white" for the vegitative growth, and when u switch ur lights to 12/12 switch the lights to the "warm white" type of cfl... 3rdly i hate walmart but they havwe everything peat vermiculite nutes lights fans paint .. just about everything but the seeds... i still hate you walmart!... hope that helps yah