I have never seen a three foot T-anything. I did find a two foot/four light bank fixture with T5's. It's really rare to have anything but two bulbs in a two foot lamp. I found it at EcoGrow Enterprises,
Hydroponics, Indoor Gardening Supplies, Hydroponic Systems - Home.
I grow mostly phals and a few oncs indoors and will try a few mini-catts with the new light set-up. I'm hoping the four bulb fixture is enough, but I can always add more lights if it is not. (here we go.....)It's getting colder at night now and I was really getting sick of hauling my plants back and forth twice a day!! I finally went over the edge.