To showcase growing with multiple lights at higher light intensity levels to maximize yield per square foot, we ran a test with 4 of our PhytoMAX-2 600 lights in a 6x6 foot area. Yielding just short of 8 pounds (2 pounds per light), we got 100 grams per square foot, more than 2.5 times the industry average.

See the complete breakdown of this grow here:

And a time lapse of the entire grow here: