Just posting a couple of pics from a test grow I am doing off fluoro's. I know many of you are going to say buy MH or HPS light but as I said this is a test grow.
I will tell you about my experence with CFL's, Flouro's & Metal Halide & HPS.
I generally use HPS to flower and use CFL's & Metal Halides for vegging....
But I have a 315 watt multi spectrum CFL array that I put in a closet.
I usually get 2.5-3.5 oz off each of the 4 plants I flower under HPS. I had an extra Super O.G. clone for which I didn't have any room for in my grow box. I put it under the 315 watts of CLF's and feed it and watched like the others.
The buds got extremely dense and packed. The yield was just less than 2 oz. This is incredibly Dank weed.
That's not a lot for 315 watts, but i was blown away by the quality. It took a little longer.
This run I have a Fire O.G. under the CFL's, and it is doing great !