A recent article in the NY Times reports that “Solar panels and wind turbines get a lot of attention, but a more inconspicuous instrument is helping to reshape America’s energy economy right now: The humble light bulb.”

Electricity use in the home has declined for the past 8 years after decades of steady increases, and lighting is a major contributor to that decline. Consumers replaced traditional incandescent bulbs with halogen bulbs, then compact fluorescents and now LED bulbs. The transformation has been more rapid than expected due to the short lifespan of traditional bulbs and the drop in price of LEDs. LEDs outsold all other types of bulbs in 2017 for the first time.

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