The MK-R LED is another barrier breaking high power LED from Cree, delivering up to 200 lm/W. This breakthrough is fast on the heels of the 186 lm/W delivered by the recently announced Cree XLamp XM-L2 LED, the industry’s brightest, highest-performing, single die LED. These two recent announcements further establish Cree’s track record for turning R&D breakthroughs into commercially available products in 2-3 years.