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Date: 2015-08-05 17:31:34Lighting Light Gas discharge lamps Light-emitting diodes Energy-saving lighting Electromagnetism LED lamp Lumen maintenance L Prize Compact fluorescent lamp Lumen Electric light | Lumen Maintenance Testing of the Philips 60-Watt Replacement Lamp L Prize EntryAdd to Reading ListSource URL: www.lightingprize.orgDownload Document from Source WebsiteFile Size: 2,18 MBShare Document on Facebook |