cannabineer
Ursus marijanus
I'd start with 84 with an expansion socket for 126 ... in my opinion that'll work well. CFLs are best right up against the plants' tops, so have a way to either lower the lights or raise the plants ... cn
Not sure. However if you rig your grow area with 3 sockets, you can run 3 lights. The sockets don't need to be occupied, so 2 lights are workable in that configuration as well. cn[What's] an expansion pack[?]