4x3 surface area = 12 sq ft

600 HPS light produces ~90,000 lumens

90000 / 12 = 7500 lumens per sq foot

so you should be pretty golden in there as 5000 lumens per sq foot is considered enough to give optimal growth... at 7500 you have another 50% ontop of that!
syde00 Reviewed by syde00 on . 4X3...? 600w...? Okay here we go will a 4X3x5 area be sufficient for a 600w Mh/hps light? How many plants do you think that I can get away flowering in there.? Do you guys think I should go 4X4 but I wanted to keep bout 50w per sq foot.? Any suggestion or your thought greatly appreciated thanx again. ~One~:rastasmoke: ~BudG~:rastasmoke::rastasmoke: Rating: 5