Tell that to someone who grows in a shed outdoors in near freezing weather most of the year. Like me. Heat and environmental control is very much a consideration, like it or not.
Granted, when I built the shed I grow in now I seriously considered
HLG 550's. The main reason I said nope, was the $4000 price tag. I built the whole damn shed for less than that. $4000 vs $400 for lighting... It really wasnt a hard decision as I was already very comfortable using and controlling environment with HID. I made the decision to use these for now and see how the technology advances and if the prices come down and the tech becomes more widespread and consistent, I'll get on board. I've never once said LED arent more advanced and efficient, they clearly are. Im just saying that's not going to be everybody's driving motivator.
Anyway, I thought I unwatched this thread? lol