World's longest burning bulb was lit up in 1901
A bulb in a building in Livermore, California is the world's longest burning bulb recognised by the Guinness Book of World Records. Lit up in 1901, the 60-Watt bulb manufactured by Shelby Electric Company has dimmed with time but never gone out. Monitored and maintained by Livermore fire department, a webcam livestreams the bulb on a dedicated website called 'Centennialbulb'.