Hypo...with due respect to the responses thus far, I think T5's are a little more powerful then most people will give them credit for. I can testify to their power under vegetation which is a 6500k or 6000k bulb depending on which bulb and technology you end up with. I have been looking into something called Power Compact which is a socketed bulb with a square end. It basically takes a T5 and bends it around like a CFL, which allows you to not need wires on both end. Depending on the application, it can make or break the decision to use the technology.

Take a look a utube for T5 grows or floro grows. It will at least get you started. I would like to see some data or comparisons though before deciding to pull out my 600watt light.

I'm sure in 12 months time I will have this information, but since I have so little experience right now nor do I have enough harvests under my belt to be able to speak about this stuff knowledgeably. I know having grown for nearly a year now (and not a single successful harvest..lol), what works and does not work for me and my space. Past that, what works and doesn't, I guess I wont know till I try it and see what happens.