I don't think T-5's are worth the money.
Yes, they're more efficient, but in my experience they don't make the plants grow faster or better than CFL's or T-8's.
I use CFL's and T-8's in veg, and I use EVERYTHING in flower (HPS, MH, T-8'S and CFL's).
psteve Reviewed by psteve on . T5 vs. HID Alright, so tons of stuff comparing flourescents with HIDs, but T5s are really a whole lot better than T8s or any of the other flourescent bulbs. I know marine aquarists have been looking at T5s very seriously since they came out, and I can promise you a MJ plant isn't nearly as light hungry as some of the corals they grow. :D I am sure its penetration isn't that of a HID, but I was wondering how the two compared generally. Anyone have any experience with T5 grows? I was thinking a Rating: 5