Well, I've been trying to decide whether to use LEDs or high end T5s for my new veg box.
I think I've decided to use 2 x 45w GlowPanel LEDs per unit to cover roughly 2.5' x 3' of veg, starting from clones, leaving the box as about 12" lollypops.
(If I have to, I could add a couple T5 strip...