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An oil lamp is an object used to produce light continuously for a period of time using an oil-based fuel source.
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A candle is an ignitable wick embedded in wax, or another flammable solid substance, that provides light.
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Gas lighting is production of light from combustion of a gaseous fuel. The first gas lamp was invented by William Murdoch and used coal gas.
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Edison's first light bulb worked by passing electricity through a thin platinum filament in the glass vacuum bulb.
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A low-pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light, invented by a team led by George E. Inman.
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A fluorescent lamp designed to replace an incandescent light bulb (Edison's light bulb).
Invented by Edward E. Hammer. -
An electric light that produces light using one or more light-emitting diodes. Nick Holonyak, Jr. invented the first LED.
