There was actually a couple of displays that Paradise and another breeder (i cant remember if it was paradise for sure, but it was a BIG name like that - definitely a breeder thats "big doggin it" in the community) had over at the cannabis cup this year, of grows done completely with LEDs. The plants were fat as fuck, with big juicy colas too. From what they were saying in the vid, they were using a new type of led panel that had twice the output as the old panels. Now, again this could be a marketing ploy, and they stuck some plants grown with a HPS in their display n threw some LEDs over them to make it look good, but then again, they were some respectable names in the game using them and trying to market them as the next big thing.
Now, ive seen the comparison between HID lighting and LED lighting when growin pot, and IMO theres no comparison, i feel the same way as everyone else, but reguardless of whats been done already and the "go with whatcha know" motto when it comes to grow methods, new and innovative ways to grow are always being sought out, and if fine tuned properly, LEDs do have massive potential to allow us all to grow like we normally would, with 1/4 of the electric bill that we would normally have with a standard grow op goin. Im not saying that LEDs are anywhere near ready to be able to make that claim, but i am saying that if they keep at it, theres definitely potential there....
I would be lookin for LEDs within the next year or two to make a pretty big re-emergence, causing alotta people who counted them out, to take a second look at them, perfected, and highly productive.
For now though, stick with the HPS/MH setup.if you veg MH n flower HPS, youll get results like no other lighting on the market right now, other than mother sun herself
happy growin man
-k1,