Until recently, the title of the world’s longest-burning light bulb was held by the “Eternal Light” in Fort Worth, Texas. Now, the title has been passed to the “Centennial Light” in Livermore, California.

The Eternal Light was originally installed by General Electric as part of the Golden Jubilee celebrations of the company. The bulb was thought to be an eternal light, one that would not need to be turned on and off. However, it was accidentally turned off in 1970. The bulb has since been saved from the World Trade Center’s destruction. Today, it is a museum exhibit.

The Eternal Light was installed at the Byers Opera House in Fort Worth, Texas, in 1908. It was placed above the stage door entrance to the theater, and kept meticulous records of its installation. The Byers Opera House was turned into a movie theater in 1920. A few years later, the bulb was moved to the main firehouse. A shade was later installed as a sleeping cover.

When the building was slated to be demolished, George Dato saved the bulb from being destroyed. He used his connections with local government officials to secure the bulb’s protection. He also installed a new display case in the building’s front lobby. In addition, the Byers Opera House hung signs warning people to avoid the bulb switch.

After being installed, the bulb was kept on for many years, but its lights were dim and flickered. This caused few people to notice it. Eventually, it had to work twice as hard as it usually did. The lightbulb filament is made from platinum. The bulb was originally 30 watts. In its earliest days, it was connected to a 110 volt city power system. When reconnected, it shone for a few hours at 60 watts. When it was removed, the bulb’s filaments had a tendency to burn out faster. However, with a dedicated power supply, the bulb has a lifespan of over one million hours.

In the early 1970s, a reporter named Mike Dunstan began noticing that the light bulb kept glowing even after the power was shut off. He contacted General Electric, which verified the bulb’s longevity. In 1972, the Guinness Book of World Records declared the Edison bulb as the world’s longest-shining light bulb. The bulb has been burning for more than a million hours since its introduction in Livermore, California. In 2015, it passed the one million hour mark. The bulb is still burning, and is currently being maintained by the Livermore-Pleasanton Fire Department.

The light bulb has also been spotted in New York City. It is located above the back door of Gasnick’s Supply store. In addition to the bulb’s longevity, its essential makeup is difficult to dissect. The filament is platinum, and the vacuum envelope has removed most of the oxygen from the bulb. In order to prolong its lifespan, it is now hooked up to a rheostat. The rheostat is a device that helps smooth out power surges.