This statistic shows the projected efficacy of cool and warm white light-emitting diode (LED) lamps in the United States from 2010 to 2020. In 2012, it is estimated that warm white LED lamps will have an efficacy of 141 lumens per watt.
Projected efficacy of LED lamps in the United States from 2010 to 2020, by lamp type
(in lumens per watt)
Characteristic
Warm white
Cool white
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According to the source, projections for cool white packages assume CCT=4746-7040 Kelvins and CRI=70 -80.
The abbreviation CCT stands for color correlated temperature; the abbreviation CRI stands for color rendering index.
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US Department of Energy. (July 29, 2011). Projected efficacy of LED lamps in the United States from 2010 to 2020, by lamp type (in lumens per watt) [Graph]. In Statista. Retrieved July 22, 2024, from https://www.statista.com/statistics/216358/efficacy-of-led-lamps-in-the-us/
US Department of Energy. "Projected efficacy of LED lamps in the United States from 2010 to 2020, by lamp type (in lumens per watt)." Chart. July 29, 2011. Statista. Accessed July 22, 2024. https://www.statista.com/statistics/216358/efficacy-of-led-lamps-in-the-us/
US Department of Energy. (2011). Projected efficacy of LED lamps in the United States from 2010 to 2020, by lamp type (in lumens per watt). Statista. Statista Inc.. Accessed: July 22, 2024. https://www.statista.com/statistics/216358/efficacy-of-led-lamps-in-the-us/
US Department of Energy. "Projected Efficacy of Led Lamps in The United States from 2010 to 2020, by Lamp Type (in Lumens per Watt)." Statista, Statista Inc., 29 Jul 2011, https://www.statista.com/statistics/216358/efficacy-of-led-lamps-in-the-us/
US Department of Energy, Projected efficacy of LED lamps in the United States from 2010 to 2020, by lamp type (in lumens per watt) Statista, https://www.statista.com/statistics/216358/efficacy-of-led-lamps-in-the-us/ (last visited July 22, 2024)
Projected efficacy of LED lamps in the United States from 2010 to 2020, by lamp type (in lumens per watt) [Graph], US Department of Energy, July 29, 2011. [Online]. Available: https://www.statista.com/statistics/216358/efficacy-of-led-lamps-in-the-us/
