Cree LEDs (not just bulbs) are sold to 3rd parties, too - and I've seen them used a bit on various Kickstarter projects. e.g: this one: http://www.kickstarter.

Cree LEDs (not just bulbs) are sold to 3rd parties, too - and I've seen them used a bit on various Kickstarter projects. e.g: this one: http://www.kickstarter.com/projects/1324892969/open-source-ultra-bright-led-light-pad-with-wifi-a http://www.kickstarter.com/projects/1324892969/open-source-u... A standard 100 Watt lightbulb gets about 16 lumens/watt. The 9.5 Watt lightbulb here can get ~ 84 lumens/watt. The 9 Watt (more blue) lightbulb gets almost 89 lumens/watt The above project can get about 90 lumens/watt. .. but higher efficiencies and cooler temperatures are possible .. e.g: this one spaces out the LEDs and claims to get 133 lumens/watt: - I don't know if they are from CREE or from a competitor: http://www.kickstarter.com/projects/619878070/nanolight-the-worlds-most-energy-efficient-lightbu?ref=live http://www.kickstarter.com/projects/619878070/nanolight-the-... Higher efficiencies are coming from Cree and others in the future - so it's going to get better. In the lab they're sometimes getting even in the realm of 200 lumens/watt.