cfl newb question help please

mean.green

Well-Known Member
how many sq feet?

Update: Generally you want 10,000 lumens per sq ft to mimic outdoor sunlight. Indoors the minimum you need to grow is 2,000 lumens per sq ft.

I use 60,000 lumens in a 9 sq ft space. = 6,666 lumens per sq ft.
 
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