Adolphe CHAILLET : Centennial Light Bulb ~ 127+ years... articles & patent [**rexresearch**](http://www.rexresearch.com/)[**rexresearch1**](http://www.rexresearch1.com/) --- **Adolphe CHAILLET** **Centennial Light Bulb** --- **Related: [Milewski Single Crystal Light Filament](../milewski/milewski.htm)** --- **US701295 -- Incandescent Electric Lamp** **[ [PDF](US701295ShelbyLightbulb.pdf) ] ![](ChailletUSP.jpg)** --- ******CENTENNIAL BULB** **Home of the Worlds Longest Burning Light Bulb! 127+ years...** **Installed:** First installed at the fire department hose cart house on L Street in 1901. Shortly after it moved to the main firehouse on Second. In 1903 it was moved to the new Station 1 on First and McLeod, and survived the renovation of the Firehouse in 1937, when it was off for about a week. During its first 75 years it was connected directly to the 110 Volt city power, (subject to the power outages), and not to the back-up generator for fear of a power surge. In 1976 it was moved with a full police and fire truck escort, under the watch of Captain Kirby Slate, to its present site at Fire Station 6, 4550 East Ave., Livermore, California. It was then hooked to a seperate power source at 120V, and UPS according to Frank Maul, Retired City Electrician. There was one interuption in May, 2013, when the UPS failed and it was off for at least 9 1/2 hours. When it was plugged back in it shined at 60 Watts for a few hours. It has since dimmed to its former 4 Watts. Why is still a mystery.... The improved incandescent lamp, invented by Adolphe A. Chaillet, was made by the Shelby Electric Company. It is a handblown bulb with carbon filament. Wattage- Began at 60 watts, currently shines at 4 watts. Left burning continuously in firehouse as a nightlight over the fire trucks. ![](ctbulb1milparty.gif) ![](Chailletbulb1.jpg) ![](bulbcage2s.jpg) ![](shelby-bulb1s.jpg) ![](shelby-blu3s.jpg) ![](shelby-blu1s.jpg) ![](shelby-blu2s.jpg) --- [**https://www.youtube.com/watch?v=H6DbQeZbwAQ**](https://www.youtube.com/watch?v=H6DbQeZbwAQ)**This 120 Year Old Light Bulb Still Works! // Inside Edition** A light bulb at Californiaas Livermore-Pleasanton Fire Department has been flickering since 1901. The Centennial Light was manually made by Adolphe Chaillet, the founder of Shelby Electric Company in the 1890s. It has been noted by the Guinness Book of World Records, Ripleyas Believe It or Not!, and General Electric. aWe donat even dust it off,a retired Deputy Fire Chief Tom Bramell told Inside Edition in 2018. Inside Edition Digitalas Stephanie Officer explains how the bulb just keeps on burning. --- [**https://www.quora.com/What-are-Shelby-Bulbs-made-of**](https://www.quora.com/What-are-Shelby-Bulbs-made-of-They-were-mentioned-on-Warehouse-13-so-I-was-curious-what-kind-of-filament-they-used-if-they-last-so-long-or-was-it-just-science-fiction-for-the-show)**What are Shelby Bulbs made of? ...** Carbon fiber --- ---