The Centennial Light Bulb at Livermore Fire Station #6 in California has been continuously glowing since 1901, with only brief interruptions due to power outages or relocations.
It holds the Guinness World Record for the longest-lasting light bulb.
Manufactured by Shelby Electric Company, it uses a carbon filament, which operates at a lower temperature and energy level, contributing to its longevity.
The bulb burns at a dim, low-wattage glow (~4 watts) — much dimmer than modern bulbs, but enough to remain visibly lit.
Why It Matters:
This bulb is often used to support the theory of planned obsolescence — the idea that modern manufacturers deliberately limit product lifespans to drive continuous sales.
While modern light bulbs are more energy-efficient, their design typically does not prioritize multi-decade longevity.
It holds the Guinness World Record for the longest-lasting light bulb.
Manufactured by Shelby Electric Company, it uses a carbon filament, which operates at a lower temperature and energy level, contributing to its longevity.
The bulb burns at a dim, low-wattage glow (~4 watts) — much dimmer than modern bulbs, but enough to remain visibly lit.
Why It Matters:
This bulb is often used to support the theory of planned obsolescence — the idea that modern manufacturers deliberately limit product lifespans to drive continuous sales.
While modern light bulbs are more energy-efficient, their design typically does not prioritize multi-decade longevity.
The Centennial Light Bulb at Livermore Fire Station #6 in California has been continuously glowing since 1901, with only brief interruptions due to power outages or relocations.
It holds the Guinness World Record for the longest-lasting light bulb.
Manufactured by Shelby Electric Company, it uses a carbon filament, which operates at a lower temperature and energy level, contributing to its longevity.
The bulb burns at a dim, low-wattage glow (~4 watts) — much dimmer than modern bulbs, but enough to remain visibly lit.
Why It Matters:
This bulb is often used to support the theory of planned obsolescence — the idea that modern manufacturers deliberately limit product lifespans to drive continuous sales.
While modern light bulbs are more energy-efficient, their design typically does not prioritize multi-decade longevity.
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