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Long-Term Performance in the Arizona Desert

By Andrea Wilkerson An update on the Yuma pilot project findings From the cold tundra of Alaska to the hot deserts of the Southwest, high-flux lighting applications are ubiquitous in the U.S., encompassing street and area lighting in addition to more-specialized uses at

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Is Apple’s Night Shift Enough?

The Lighting Research Center (LRC) has published the results of a study investigating the effectiveness of Apple’s Night Shift for lessening the impact of nighttime iPad use on melatonin suppression, a marker of the circadian system. Night Shift permits users of Apple’s

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In A World Without Codes

By Willard Warren With every last watt being squeezed out of lighting, will codes even be needed? Has the adoption of LEDs and other solid-state devices influenced the mechanical design of buildings beyond the energy savings in lighting? Let’s look at the factors involved.

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IES Telephones Update

We are currently experiencing issues with our phone system. While we work to rectify this issue, please visit the IES “about us” page to contact staff members via email.

Thank you for you patience.