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LED Lighting Efficiency Jumps Roughly 50% Since 2012
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If more energy efficient light bulbs use 20% less energy than conventional light bulbs, then how do they work? Is it still true that heat emits light? - Quora
LED vs. regular lightbulbs: Do they really make a difference?
LED lights: an economical and long-lasting solution - Stanpro
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LED Lights: To LED or not to LED?
Choose: LED light bulbs vs traditional light bulbs | Energy Outlet
Cornell Cooperative Extension | Lighting
LED's efficiency exceeds 100%
Upgraded A19 13W LED 3000K/5000K Light Bulb (US ONLY) – SANSI Lighting
LED lamp - Wikipedia
Learn About LED Lighting | ENERGY STAR
Swap Your Conventional Light Bulbs for LEDs at No Charge! | Sustainability | Washington University in St. Louis
How LED Light Bulbs Work | HowStuffWorks
Lighting Comparison: LED vs Incandescent Lighting
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LED vs Halogen: Which one is better? | Future House Store
