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PNNL researchers use this photometric integrating sphere to measure the light output and color of, as well as the electricity used by, energy-efficient lights such as light-emitting diodes, or LEDs.

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Document Title: PNNL Lighting Metrology Laboratory
Category: Energy Production and Conservation
Media Type: Photos
Date of Image/Photo: June 22, 2015
Background: DOE's L-Prize : http://lightingprize.org/
URL of this page: http://picturethis.pnl.gov/picturet.nsf/by+id/DRAE-9ZTTSV

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