I personally wouldn\'t go with more than 4 plants in the 4x4, especially vegging them to 2 - 2.5\', they\'ll grow out as well as up. With 4 you\'ll have light penetration deeper into the canopy and the air movement around the plants will be better. My first go, I tried packing 8 plants in #2 pots into a 4 x 2 cabinet with a 600w hps.

You may also want to consider with your lights, you\'ll only get about 4.5\' of useable vertical space for the plants..

Have fun!

Peace,

Farmer Rich