![]() ' halogen lamp' - a more efficient incandescent bulb.incandescent light bulb - the most common light bulb in the house until about 2003-2010.Later gas discharge lights, including fluorescent lights, use less electricity to make more light. Electric power stations brought electricity to urban and later rural areas to power them. This became the main kind for the 20th century. Improved vacuum pumps and better materials made them shine longer and brighter late in the century. Thomas Alva Edison, Joseph Swann, and several others in the 1880s invented the more efficient incandescent lightbulb. Humphry Davy invented the electric arclight in the early 1800s. Billions are in use, some even in outer space.Įarly people used candles and oil lamps for light. In addition to lighting a dark space, they can be used to show an electronic device is on, to direct traffic, for heat, and for many other purposes. A light-bulb produces light from electricity. ![]()
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