LED degrade over time?
Sure the LED manufacturers like Cree claim many hours like over 20 years of use, but I thought LEDs get dimmer overtime even if they don't burn out. I have seen this on LEDs I use over my aquarium for night light, they are on 24/7. And they loose intensity, even for the Luxeon type they take a hit over time.
So what is different about the residential LED lighting. How do we know they will not get too dim or unusable before the rated hours.