If a light dims down to the minimum recommended illumination level in a secondary space and no one is around to see it, does it really make a difference? Research shows yes—it makes a big difference in reducing lighting energy use.
Laboratory and field testing of prototype systems that dim corridor lights down to 50% or less of full output during vacancy periods and increase to full output during occupancy show significant reduction in lighting energy use and great potential for effective electricity demand response.
Learn more about this topic in the LD+A article authored by Nicole Graeber and Konstantinos Papamichael.
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