Need lighting primer -- lighting for masdevallias

[L-Dub]

I'm making a terrarium to grow my masdevallias in, but I don't have a good window to put the terrarium in so I'll need some form of artificial lights. I know almost nothing about lighting. The little bit I know is that I probably want to go with fluorescent lights so they don't heat the terrarium up as much.

First of all, can someone explain the difference between the different lights - T5, T8, etc? Is there a difference for growing orchids?

Can someone explain which bulb color temperatures are best for orchids (i.e. warm, cool white, etc.)?

My terrarium is about 21 inches wide and 14 inches tall. Can anyone make any recommendations about bulb type, number of bulbs, bulb temperature, etc. for growing masdevallias? How close should the masdevallias be to the lights?

Thanks for any replies!
Bryan