[Yardlink]

He makes some dubious efficiency claims. It's true the colored LEDs have always been pretty efficient, but that's no use lighting your home. White LEDs have surpassed incandescent bulbs but still have a way to go to reach flourescent tubes and the grand-daddy of efficiency - gas discharge lamps.

One (the?) reason for low power levels is they generate so much heat and are difficult to cool. LEDs are still primarily heaters - useful in the winter.

[ghostly_s]

I think you need to update your figures. High-end consumer luminaires have been coming in above 100 lm/watt total system efficiency for at least a year or so now, and with CRI superior to fluorescents.

[Yardlink]

Great news. I guess efficiency is following a similar rapid growth to power.