If i were to use an 8 (6500k) bulb 4' t5 high output flourescent, putting out 40,000 lumens for top and 8 23watt 6500k cfls as side lighting..
.. and an 8 (3000k) bulb 4' t5 high output flourescent, putting out 40,000 lumens for top and then 8 42watt 2700k cfls as side lighting for flowering...