LED Bulbs

LED bulbs use 75% less energy than incandescent and last 25,000 hours—25 times longer than a traditional bulb’s 1,000-hour life. At $2–5 per bulb, the Department of Energy confirms switching your entire home saves $225 per year on electricity, a faster payback than #5’s reusable bags. By 2027, widespread LED adoption in the US could save the equivalent of 44 large power plants’ annual output, making this swap the highest impact per dollar. Modern LEDs offer warm tones indistinguishable from incandescent, eliminating the old light quality complaint—this is the only swap with zero downsides, as it outperforms #6’s menstrual cup in energy reduction.