I don't have much experience with cfl bulbs, but I've used damn near everything else.
I am an old school weed nerd.
I use HPS and MH for the terpene production. I have friends with LEDs, but they do not get the results I do, even with my clones that I give them.
It's a long discussion why I prefer old school lighting, but it wasn't until I put my plants under 1000 watts of HPS that I saw my genetics as they were supposed to be.
That is not to say you cannot provide yourself with enough smoke with ANY light, just a comment about seeing genetic POTENTIAL.
So, knowing that the intensity of a 1000 watt HPS was required to see the genetic potential of my plants, do a comparison, and try to get that intensity however you must, considering your environment and growing conditions.
Get as close as you can without causing yourself a lot of problems with heat and dry air.
For instance, I once had to use a 100 watt diamond LED light to grow in a closet, because that's all I could manage.
I was able, through topping selectively, to grow 18 inch plants with 8 colas, in a rotating schedule, with a 2 bulb high output florescent as a veg light.
I stayed high for 6 months that way, though it was just enough for me.
SO, you can grow with any light, but to see the potential locked in the seed, the intensity must be up to par.