The VLED lights with the Cree element apparently use 27W each. They also have little fans on each, to keep them cool - maybe only needed in certain situations?
http://http://www.vleds.com/shop-bul...xa-2000lm.html
At $120 each, that is a steep price, but I think they are considerably brighter than typical bulbs (2000 lumens vs ~1400?).