Quote Originally Posted by stra8outtaWeed
i use 450w on 16 plants but could easily do 20 if i had more space...the key w/LED wattage is how is is spread out...in other words you are better off with several 100-150w units than 1 600w unit :jointsmile:
Exactly. I would recommend 5 120w or 4 150w units, 4 plants under each 120 or 5 plants under each 150. Having all that light concentrated into a single panel is a waste.