The bulb hanging from the fire station ceiling.

The Centennial Light

Burning since 1901, this bulb holds the record for the longest burning lightbulb. The Livermore-Pleasanton Fire Department maintains the bulb in LPFD Station 6. The bulb was manufactured by the Shelby Electric Company in the late 1890s.

The bulb has been moved at least three times, most recently in 1976 when it was offline for 22 minutes before being installed in its current location.

Website | Wikipedia

Fire Station #6, 4550 East Avenue, Livermore, CA - Map

7 December 2019

What's better than a webcam dedicated to the world’s longest burning lightbulb? Its website

Chris Plante, The Verge, 29 June 2016

Tests shine light on the secret of the Livermore light bulb

Jeanine Benca, The Mercury News, 3 February 2011

Inside the sand mine.

Hazel-Atlas Sand Mine

21.9 miles away