Someone I respect on another site swears on leds for veg.. Claims the node stacking is ridiculous in comparison to t5s but I wouldn't know. I'm stuck in the stone age with 1000w mhs on light movers. T5s are only for preveg in my setup. Looks promising though, if they can get the initial capital cost down, I'd be Willing to buy a few brands and run em side to side with my t5/mh setup as a control. When fiddling round I'd rather plug n play anyways