What causes light bulbs to burn?

What causes light bulbs to burn?

High Wattage If the wattage of the light bulb exceeds the maximum recommended wattage for the device or fixture, the bulb will generate too much heat and cause the filament to burn out. Worst case scenariou2014that excess heat will start a house fire.

How long does it take a light bulb to burn out?

In a perfect world, light bulbs would never burn outu2026but sadly our world isn’t perfect. While not as popular as they once were, incandescent bulbs have a lifespan of around 900 hours. Based on a usage of eight hours a day, a bulb should last roughly about four months

Are light bulbs made to burn out?

Quandary: Why There’s No Such Thing as u201cBuilt to Lastu201d The light bulb that has brightened the fire-department garage in Livermore, California, for the past hundred and fifteen years will not burn out. Instead, it will u201cexpire.u201d When it does, it certainly won’t be thrown out.

Can a light bulb burn out while off?

When the bulb is turned off, it cools rapidly and shrinks back to its original size. Repeated on-off cycles simply cause the filament to break. Another cause for early bulb failure is power surges or voltage spikes on the line.

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