Im on day 6 of flower. I have 2 Mars hydro MZ 300 60watt LED lights going. Was thinking about adding a Sansi 36 watt LED. 2x2 grow space, 3 plants in 3 gal pots. Is it necessary is the most important question?
Id get the 36w light. Thats 156w, and almost 40w sq/ft, which is optimal. I would always try and get 40w-sq/ft. No less, than 35, but it has to be with the best diodes ect.