Ok, onto the CFL's. I've mentioned a couple of times that when you calculate the watts pulled out of the socket that are turned into light the watts per square foot of growing space in the tent and in the bookcase are roughly equal ~ 48 watts a square foot. That single working CFL you have easy access to draws 50 watts from the wall and turns it into plant growing light. It's like having another of the small LED panels.
Even if you just put the single one on the lower shelf of the bookcase you can keep the cup plants there and start the rectangular training on the bigger plants on the top shelf under the LEDs sooner.
Even if you just put the single one on the lower shelf of the bookcase you can keep the cup plants there and start the rectangular training on the bigger plants on the top shelf under the LEDs sooner.