http://www.marketwatch.com/story/cree-achieves-186 -lumens-per-watt-from-a-high-power-led-2009-12-01? siteid=nbsh High-Performance Chip and R&D Package Combine for Record-Setting Efficacy DURHAM, N.C.,
Dec 01, 2009 (BUSINESS WIRE) -- Cree, Inc., a market leader in LED lighting, announces it has achieved industry-best reported R&D results of 186 lumens per watt for a ...