Light bulb that never been turned off since 1901. ivermore's Centennial Light Bulb The Centennial Light is the world's longest-lasting light bulb, burning since 1901 , and almost never switched off. Due to its longevity, the bulb has been noted by The Guinness Book of World Records , Ripley's Believe It or Not!, and General Electric. The Centennial Light was originally a 30-watt(or 60-watt) bulb, but is now very dim, emitting about the same light as a 4-watt nightlight. The hand-blown, carbon-filament common light bulb was manufactured in Shelby, Ohio, by the Shelby Electric Company in the late 1890s and was invented by Adolphe A. Chaillet. The hand-blown, carbon-filament common light bulb was invented by Adolphe Chaillet, a French engineer who filed a patent for this technology. It was manufactured in Shelby, Ohio, by the Shelby Electric Company in the late 1890s; many just like it still exist and can be found functioning. According to Zylpha Bernal Beck, the bulb was...
A Freelancer, Web Developer