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Codes + Standards

Proposing a Redefined Lumen Instead of CRI as a Basis for Regulation

Craig DiLouie February 7, 2017

reaIn this article published in LEDs Magazine, Mark Rea, Director of the Lighting Research Center, and Jean Paul Freyssinier, Senior Research Scientist for the LRC, propose a new definition for the lumen. This lumen should be used in product regulations instead of CRI, as CRI arguably does not align to consumer preferences for color rendering.

Rea and Freyssinier make their case here.

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Craig DiLouie
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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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