world's longest-lasting light bulb From Wikipedia, the free encyclopedia
The Centennial Light is an incandescent light bulb that has been on near-continuously since 1901. It is located at 4550 East Avenue, Livermore, California.[1] It has also been noted by Guinness World Records.[2]
The Centennial Light was manufactured in Shelby, Ohio, by the Shelby Electric Company in the late 1890s.[3] In 1901, Dennis Bernal donated the bulb to the fire department after he sold the Livermore Power and Water company.[4] The bulb was first located in a hose cart house on L Street, and then moved to the main firehouse on Second Street shortly after. In 1903, the bulb was moved to the new Station 1 firehouse. The bulb stayed there for 73 years. In 1976, the bulb was moved to its current location with a police and fire truck escort.[5][6] The cord had to be cut to move the bulb, as the firefighters feared unscrewing the bulb would damage it.[7]
The Centennial Light originally produced 30-60 watts[8][5] of light, but it currently runs on only four watts.[3]
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