July 2014

Codes + Standards

DOE Takes First Step in Updating National Reference Standard for Commercial Buildings to 90.1-2013

Craig DiLouie July 2, 2014

Preliminary analysis from the U.S. Department of Energy shows that the ASHRAE/IES’s 2013 energy efficiency standard contains energy savings over the 2010 standard of 8.5% source energy and 7.6% site energy. This is the first step by the DOE in issuing a ruling that could establish the 2013 standard as the commercial building reference standard [...]

Products + Technology

Cree Breaks 300 Lumens Per Watt Barrier

Craig DiLouie July 1, 2014

Cree, Inc. recently demonstrated 303 lumens/W from a white high power LED. Reaching the landmark achievement faster than predicted, this result surpasses Cree’s previous R&D industry best of 276 lumens per watt announced just over a year ago. Cree reported that the LED efficacy was measured at 303 lumens/W, at a correlated color temperature of [...]

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Launched in 2001, LightNOW covers the rapidly changing lighting world for lighting people. Check-in daily to see new posts by Editor David Shiller, Craig DiLouie, and other experts in the lighting field including consultants and lighting designers. Posts include news items to keep you up to date, short opinion pieces to invite you to consider another point of view, new products every Monday, and links to new research and tools to help you design with light. Also be sure to subscribe to the LightNOW newsletter (free), which is published every two weeks as a digest of articles on the site. We always welcome your feedback, so feel free to comment on any of the stories that appear here at LightNOW. If you are a manufacturer, LightNOW offers a low-cost ad vehicle to reach thousands of specifiers, contractors, reps, distributors, consultants, owners, and other stakeholders in the sales channel. For advertising inquiries, contact Suelynn Shiller. Thank you for visiting, and we hope you find LightNOW useful for your career in lighting

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