So what do you think would happen if I couldn't move the lights up? I am able to lower three plants(that are about 3ft) 6-7inches (more if needed) but the others are almost 4ft and lights are at the roof w/ no way of raising them...

what do you think the affects would be, would they just take longer to mature?obviously yield too i would guess, which is a bummer but not the worst thing as long as the quality is still ok...which is the last question, how might it affect quality?