I have been using T8 Full Spectrums for several years now and have good results. Actually adding 12 more 2 footers in the Spring for the additional shelves. We find that there is a lot less leggy growth over Winter too.
Grimmy
The biggest mistake most people new to indoor lighting for plants is not putting enough light over their plants. They dont realize what it takes to simulate the sun for your plants.
Lighting can be such a confusing thing for someone not familiar with it. Watts, Kelvin, Lumens, PAR, spectrum, configuration (T5, T8, etc).
It took me a while to start to get a handle on it. What helped for me is that I have a planted freshwater aquarium and had to learn all of this stuff to get the right lights for those.
The information is the same. I also used to do seagrass work and used a light meter to measure light in the environment.
I had someone ask me about winter lighting for bonsai so I wanted to get some information together to help them out. The info at the beginning of this thread about color spectrum and the graphics are helpful in understanding.