I AGREE they will be great technology if, they get the funding they ever need to evolve to that point. I just cringe when I see modern LED tech being bought with the hopes it will grow marijuana.
Its pretty much simple and plain as day to see they are in Alpha, and not near ready enough to do the JOb they are being marketed as. So why do people keep buying into this?
What I think will be the day that LEDS are great and ready is when 1 Led can equal a modest CFL in intensity and ability, a feat that I can prove mathmatically is still a few years away.
However if you compare them to HID, and needing to replace HID light (a single source point of light), then NO LEDS, are not going to be able to accomplish this feat theoretically never or within 50 years.