Why do LED bulbs last so much longer?
no thin filament burning at ~2500 °C; LEDs run cool and fade slowly (15,000–25,000 h vs ~1000 h).
Why do LED bulbs last SO much longer than old bulbs? 💡⏳
1️⃣ THE OLD BULB: it makes light by heating a thin tungsten wire to about 2,500 °C (4,500 °F). At that heat the metal slowly boils off, the wire gets a thin spot… and one day it snaps. Game over after about 1,000 hours.
2️⃣ THE LED: there's no hot wire at all. A tiny chip turns electricity straight into light. It runs warm, not white-hot, so nothing burns out.
3️⃣ THE HOURS: a good LED bulb is rated for up to 25,000 hours — about 25× longer. At 3 hours a day that's around 20 years! It doesn't suddenly die: it just dims slowly.
💡 Tip: heat is an LED's enemy — avoid fully closed fittings if the box says so.
No hot wire = long life.
Read the voiceover (transcript)
- Why do LED bulbs last so long?
- Old bulbs heat a thin wire to twenty-five hundred degrees. It wears thin and snaps.
- An LED has no hot wire. A tiny chip turns electricity straight into light.
- So it lasts up to twenty-five thousand hours. Old bulbs: about one thousand!
- No hot wire, long life!
- Next: why batteries die in the cold. Follow for more!
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