Incandescent Light Bulb


Who invented the light bulb?

The first incandescent light bulb was made by Humphry Davy in 1800. He discovered that when he connected a wire to a battery and a piece of carbon, it glowed (electric arc).

In 1860, Joseph Wilson Swan tried to make a long lasting light. He found that a carbon paper filament worked well.

In 1879, Thomas Edison discovered that if you have an oxygen free bulb with a carbon filament, it glowed for 40 hours before burning out. Later on he found a way to make a bulb glow for over 1,500 hours.

In 1903, Willis Whitney made a treatment for the carbon filament so that it wouldn't darken the bulb as it glowed.

Seven years later in 1910, William David Coolidge made a tungsten filament that lasted longer.

Why should you buy it?

  • The light bulb allows you to not be in the dark at night as well as during the day.
  • You don't have to burn candles.
  • The light bulb increases productivity because you can now work at night or do things during the night as well as the day.
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Need a light bulb? Contact Thomas Edison.