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SANSI 650-Watt Equivalent A21 6500 Lumens Energy Saving E26 LED Light Bulb 5000K Daylight (1-Pack) 01-02-001-035051 - The Home Depot
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SANSI 60-Watt Equivalent A11 800 Lumens E26 Base High Efficiency Flame Retardant LED Appliance Light Bulb 5000K (6-Pack) 01-02-001-080056 - The Home Depot
The Lighting Paradox: Cheaper, Efficient LEDs Save Energy, and People Use More - Inside Climate News
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America's Light Bulb Revolution - The New York Times
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SANSI 40-Watt Equivalent A11 450 Lumens E26 Base High Efficiency Flame Retardant LED Appliance Light Bulb 5000K (2-Pack) 01-02-001-045052 - The Home Depot
Efficiency of LEDs: The highest luminous efficacy of a white LED - www.dial.de
Lighting Efficiency – eToolLCD Support
U.S. Energy Information Administration - EIA - Independent Statistics and Analysis
The Benefits Of LED Light Bulbs - Small Footprint Family
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Maine Residential Energy Efficient Lighting Solutions | Efficiency Maine
Why Is LED Lighting More Efficient? | REenergizeCO | Denver