Since I have an experimental attitude about things, I'd be willing to put in a few led panels for supplemental lighting and see what happens, IF they weren't so damn expensive.
But only use LED's? NO WAY! they're unproven and I've never seen a full LED grow that was worth a damn.
What I want to know is, all the panels I've seen use the regular kind of LED, but what about panels of the new high-watt LED's? I have a spotlight with one 5-watt LED that's brighter than my other 1,000,000 candlepower spotlight.
Anyways, I'm sure it will be years before I'd consider giving up HPS/MH