It wasn't 2 years ago that I refused to use LED, because I just never saw the results that can be obtained with HID. However, that's changed. The new LED's rival or exceed their HID counterparts and do so with a significant energy savings.
Put a tent in the corner of a cool room, add a panel and grow top shelf cannabis ANYWHERE.
I'm very interested in how this turns out, because my trays have to PRODUCE and everyone has a very high expectation of my product. They'll be upset if I grow crap.
Just the fact that I dedicated an entire tray in my grow space to LED lights is an endorsement in and of itself. I fully expect a repeat of my last LED grow, which gave me some top knotch produce.
I don't use tents anymore, I've upgraded to full rooms. But if I were to build a room based off LED lights I wouldn't need 4 AC units and as many fans as I have. But that start up cost to fill a room with LED lights is outrageous. I would love to do something like that. Maybe in a year or something