Copyright © 2009 Cree, Inc. pg. 1 Indoor Solid State Lighting.

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Presentation transcript:

Copyright © 2009 Cree, Inc. pg. 1 Indoor Solid State Lighting

Copyright © 2009 Cree, Inc. pg. 2 Fixture Efficacy 10 lm/W 17 lm/W Incand Coefficient of Utilization 58% x= * Including loss for thermal Tj = 65°C Coefficient of Utilization 90% Driver Efficiency 91% Thermal Equilibrium 88%* 75 lm/W = XLamp x Fixture Efficacy 54 lm/W Fixture Efficacy 35 lm/W 60 lm/W CFL Coefficient of Utilization 58% x = WARM WHITE CA Title 24 x x 5x more Efficient than Incandescent, 2X CFL…

Copyright © 2009 Cree, Inc. pg. 3 Indoor Applications Different requirements than outdoor –Warm White Color Temperature (~3000K) required –High CRI (>80) –Lamp maintenance not a driving factor –High style content –Focus on energy, green –Different market channels, cost expectations (consumer product) Yes, these are LED!

Copyright © 2009 Cree, Inc. pg. 4 Successful Installations Anywhere Downlights are Used… –And High Efficacy, Excellent Color, and Longevity are Required Retrofit and New Construction –Multi-family –Hotels –Restaurants –Offices –Schools –Universities –Retail –Single-Family Residences

Copyright © 2009 Cree, Inc. pg. 5 Residential Lighting Cree LR6

Copyright © 2009 Cree, Inc. pg. 6 Walmart Cree LR6

Copyright © 2009 Cree, Inc. pg. 7 Benefits Beyond Lighting Being Quantified Cree Lighting LRP38 – Total Wattage = 36W; CRI = 93 Ceramic Metal Halide – Total Wattage = 158W; CRI = 81

Copyright © 2009 Cree, Inc. pg. 8 Yum Brands Courtesy of Derry Berrigan, DBLD 81% energy reduction from baseline store 95% of lighting is high- performance LEDs

Copyright © 2009 Cree, Inc. pg. 9 Sheraton Hotel – Greensboro, NC 400 LR6 recessed down lights – 2000 planned Up to 82% energy savings

Copyright © 2009 Cree, Inc. pg. 10 –Indoor hibay –Indoor fluorescent Still some work to be done (0-3 years) –Higher wattage roadway –Replacement bulbs Education is key –DOE Energy Star and other quality programs will help Summary –LED Fixture design learning curve All the major pieces are in place: –Standards –Performance –Lower wattage street lights –Indoor down lights –Freezer cases/displays LEDs save real energy and make good economic sense in many important applications now: –Parking decks, canopies –Hazardous work areas –Pedestrian, bollards, etc.

Copyright © 2009 Cree, Inc. pg. 11