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09-01-2009, 11:00 PM #4
Senior Member
CFL lumen help pls!
most people consider 5000 lumens/sq ft MINIMUM for a worthwhile harvest. it can be done with less, but it's really not worth it.
so what is the area of your grow space/cab? this is important in figuring out if your light is sufficient.
CFLs should be kept within ~1-4" from your canopy top.
i usually veg eight or so plants under 6 x 23W, 1700 lumen, 6500K CFLs and it seems like my plants are bigger than than that at one month.
i've got a batch that i've just started. although it won't help you know i will share in the future for a difinitve answer.
have you checked your roots lately to make sure that they aren't getting snug in that pot?
-shake
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