What do you guys believe to be the largest area in square feet that a 400 watt hps could cover??? Would is cover a space of 4'x4' with a sufficient amount of light for a canopy? thank you all
thats what i hear, but if you look at the grow journal of LBH you will see that he uses almost double that space 4'x4'. I thoguth 3x3 was the max too, but it looks lke LBH is doing pretty damn good in an area of 4x4. i'll prolly end up doing a couple 4'x3's or something....
4x4 is also what my local hydro store recommends for a 400w HPS as well. They state it will get very good coverage.