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CALiPER Report on PAR38 Lamps Finds LEDs Effective Replacements

The U.S. Department of Energy recently released the first in a series of follow-up studies on PAR38 lamps as part of its CALiPER (Commercially Available LED Product Evaluation and Reporting) series of reports on solid-state lighting. Under the CALiPER program, DOE and volunteers from the Illumination Engineering Society (IES), run lighting products purchased at retail through a battery of tests to evaluate their performance

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