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06-01-2010, 12:08 AM #2Senior Member
Feelings on CFLS?
6500k CFL's are great for vegging as long as you are not growing trees, they are also great for side lighting. You have already mentioned the 2 main advantages (less heat and electricity).
The biggest disadvantage of CFL's is poor light penetration (hence the tree comment) which makes them less effective during flowering. They can add 2 or 3 weeks to your flowering time.
I have a friend who grows with MH/HPS, he borrowed two of my 125w CFL's to veg for his last grow (he normally uses his MH/HPS lighting) as he wanted to veg while his grow finished flowering. He has now cropped that grow and he got his best yield ever. I don't think vegging with CFL's increased his harvest, but it certainly didn't decrease it. He is going to borrow them again.
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