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Evaluating an LED product can seem complex. One must consider the overall system efficiency, optical control, thermal management, and luminosity, and at what point in time the fixture will reach 30 percent lumen depreciation. Coal-fired power generation accounts for roughly 40 percent of the mercury emissions in the U.S. The department of energy concluded in its solid-state lighting (SSL) commercial product testing program: "Until the field of SSL technologies and supporting knowledge matures, any claims regarding performance of SSL luminaires should be based on overall luminaire efficacy (i.e., from testing of the entire luminaire, including LEDs, drivers, heat sinks, optical lenses and housing), to avoid misleading buyers and causing long-term damage to the SSL market." ...

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High quality LED tube here! An LED tube is designed to replace a traditional fluorescent tube

High quality PAR20 LED bulbs, PAR30 LED bulbs and PAR38 LED bulbs. Dimmable features. Over 80% energy saving

High quality Home LED light bulbs - replacement of traditional bulbs. E26, E27, E14, and E12 lampholders are available