I started this grow on September first. 1 Zkittlez auto, 1 Critical Jack Herer auto, 1 Northern Lights auto, 1 Blue Dream auto and 1 Sweetberry cough auto. Zkittlez finished in November 4 ounces jarable, December Northern Lights 1.5 ounces and Cristical Jack Herer 2.5 ounces of jarable. Last in January Blue Dream 6 ounces and Sweetberry cough at 12 ounces jarable
Zkittlez - 4
Northern Lights - 1.5
Critical Jack Herer - 2.5
Blue Dream - 6
Sweetberry cough - 12
Total = 26
26x28= 728 grams
728 grams / 900 watts = 0.81 grams per watt
not sure if that’s how that works