Monsurot, can you clarify something? The thread title refers to CFLs, and you describe them in your first post as "...4 T12 40w cfl at 3150 lumens and 4100 kelvin..."

A T12 is not a CFL. Likewise, a CFL is not a T12.

Which are you using...T12s or CFLs?
StoneMeadow Reviewed by StoneMeadow on . Possible to use CFl on vegg and bud cycle? Hey fellow growers Im just starting out and I was curious if it will be worth growing 2 plants from start to finish under 4 T12 40w cfl at 3150 lumens and 4100 kelvin each? ....I cant afford HPS or MH and I want to be able to harvest something decent.......thanx^^ Rating: 5