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Energetic 24 Pack LED Light Bulbs, 60 Watt Equivalent A19 LED Bulb, Soft White 2700K, Non-Dimmable, E26 Base, UL Listed, 15000 Hrs, Standard Light Bulbs - Amazon.com
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Swap Your Conventional Light Bulbs for LEDs at No Charge! | Sustainability | Washington University in St. Louis
Watts The Deal? Demystifying LEDs, CFLs, Halogens And More : NPR
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