Simple question here, If your looking for overall yield at the end of the day would it be better to grow something like 70 plants under a 1000 watt hps sea of green system or grow a couple trees and hope for the most?
2 600w are more efficient than a single 1000w, bigger footprint, more room to grow, great for SOG, I'll be trying both methods soon, but until then, I can't tell you much.