I am filling a 2x4ft screen with one plant and am using CFL's placed about 2 inches from the trained canopy. Currently I am running 12-26 watt CFL's @6500K for veg.
I plan on upgrading the lights to 18 - 26watt CFL's (9-3000K and 9-6500K) for a mixed spectrum for flowering. I did the math and the total lumen output for the 18 bulb setup would be 28,800 lumens. Figure in my square footage (8sq. ft.) and it equals out to 3600L/1sq.ft. I know the optimum goal is for 5000L/1sq.ft. But is this desired amount for freestanding plants that require canopy penetration?
Also, does this factor in the inverse square law?
Will I be able to get any dense buds with this limited lighting with my scrog setup? Remember, I have my light fixture only 2-4 inches away from the even canopy.

What should I expect?:jointsmile:

FYI- I will be upgrading to a 400watt hps after this grow.
Any seasoned CFLer's/SCROGer's out there?
jdsoil Reviewed by jdsoil on . SCROG/CFL lighting I am filling a 2x4ft screen with one plant and am using CFL's placed about 2 inches from the trained canopy. Currently I am running 12-26 watt CFL's @6500K for veg. I plan on upgrading the lights to 18 - 26watt CFL's (9-3000K and 9-6500K) for a mixed spectrum for flowering. I did the math and the total lumen output for the 18 bulb setup would be 28,800 lumens. Figure in my square footage (8sq. ft.) and it equals out to 3600L/1sq.ft. I know the optimum goal is for 5000L/1sq.ft. But is this Rating: 5