I like light rails, but they're misleading. Not really meant to run the whole length. Made to run a couple feet of the track. Mostly for getting where the shadows usually are. That being said, they really are pretty awesome. I'll be getting one for my next grow. Had to dial in using chm and coco this time around. I'm still new. I can do all the research in the workd, but in the end real world experience is what matters. Although alot of guys seem to think their way is the best and only way. That kind of stuff irritates me. Most of the nutrients available are the same thing with just different packaging and advertising. I prefer to stick to numbers and principles....with a little opinions tossed in for pointing me in the right directions. Seem about right?