Verdicts / LED bulbs
Are LED bulbs worth it?
NOD
Yes. LEDs use at least 75% less energy than incandescent bulbs and last about 25 times longer, per the U.S. Department of Energy.
The details
The U.S. Department of Energy says LEDs use at least 75% less energy than incandescent bulbs and last about 25 times longer.
The fine print: it only pays off where you still have old bulbs in lights you actually use. Start with the kitchen and the lamps that stay on for hours. The closet light that is on four minutes a year can wait.

Questions
How much less energy do LEDs use?
At least 75% less than incandescent bulbs, according to the U.S. DOE.
Should I replace every bulb right away?
No. Swap the bulbs you use most first. Rarely used lights barely move your bill.
Sources
Last checked October 26, 2026. Spot a mistake? Tell us and we'll fix it.
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