If we could make bulbs that last for decades in 1901, why do yours burn out every few years?
Today, the closest thing we have to an "infinite" bulb is the LED. While an incandescent bulb relies on a wire literally burning until it breaks, LEDs use semiconductors to create light without high heat.
Unlike modern tungsten filaments, which are thin and fragile, early bulbs used thick carbon. They are remarkably robust. If we could make bulbs that last for
The Eternal Glow: Why Your Lightbulbs Don’t Last Forever (But One Has for 120 Years)
Here is the true story behind "infinite" light, the engineering trade-offs we make, and the conspiracy that changed the industry forever. The Mystery of the 120-Year-Old Bulb Unlike modern tungsten filaments, which are thin and
In 1924, major manufacturers (including Osram, Philips, and GE) formed the . They realized that if bulbs lasted too long, they would run out of customers. The cartel standardized the lifespan of a lightbulb to 1,000 hours , even though 2,500 hours was the technical standard at the time. Members were even fined if their bulbs lasted too long. This was one of the world's first major examples of planned obsolescence . The Modern Alternative: LEDs
Originally a 60-watt bulb, it now glows at a dim 4 watts—roughly the brightness of a nightlight. Running at lower power significantly reduces heat stress. The Mystery of the 120-Year-Old Bulb In 1924,
Known as the Centennial Light , this hand-blown bulb hangs in a fire station in Livermore, California . It has outlasted three webcams that were installed just to watch it.