I was able to make some temporary walls out of painted cardboard and shrink my grow space from 15 sq ft down to 8 sq ft. by placing my floro lights against each other, side by side. I was able to fit all 80000 lums in the 8 sq ft space. if my math is right and I understand the formulas, that would give me 10000 lums per sq ft. plants are only average 8 to 10 inches tall lots of new growth. the branches are closely spaced. in about 10 days I plant them in larger pots the temp walls come down and they get reduced to 5300 lums per sq ft. for the remainder of the veg cycle. anybody forsee problems with that?