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An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a filament that is heated until it glows. The filament is enclosed in a glass bulb that is either evacuated or filled with inert gas to protect the filament from oxidation .
1879 Thomas Edison and Joseph Swan patent the carbon-thread incandescent lamp. It lasted 40 hours. 1880 Edison produced a 16-watt lightbulb that lasts 1500 hours. 1882 Introduction of large scale direct current based indoor incandescent lighting and lighting utility with Edison's first Pearl Street Station
In 1924 Howell was a recipient of the IEEE Edison Medal for his contributions towards the development of the incandescent lamp. Howell later co-authored the book History of the Incandescent Lamp, the authoritative source for the identification and description of Edison lamps.
60 W incandescent light bulb with energy efficiency class E Equivalent 42 W halogen incandescent light bulb with efficiency class C Compact fluorescent lamp LED lamp. Various governments have passed legislation to phase out manufacturing or importation of incandescent light bulbs for general lighting in favor of more energy-efficient alternatives.
This was the first formally established electric-lighting company in the United States [5] [6] [7] and was the first company organized specifically to manufacture and sell incandescent electric light bulbs to put into a system. Man and Sawyer patented the first practical electrical distribution system for incandescent electric lighting and gave ...
Sir Joseph Wilson Swan FRS (31 October 1828 – 27 May 1914) was an English physicist, chemist, and inventor.He is known as an independent early developer of a successful incandescent light bulb, and is the person responsible for developing and supplying the first incandescent lights used to illuminate homes and public buildings, including the Savoy Theatre, London, in 1881.
"The first incandescent lamp [developed by Woodward and Evans] was constructed at Morrison's brass foundry in Toronto and was a very crude affair. It consisted of a water gauge glass with a piece of carbon, filed by hand and drilled at each end, for the electrodes, and hermetically sealed at both ends, having a petcock at one end with a brass ...
The Centennial Light is an incandescent light bulb recognized as the oldest known continuously operating light bulb. It was first illuminated in 1901, and has only been turned off a few brief times since.