Light bulb 'in almost continuous use since 1901'

A light bulb in the US has been in almost continuous use for 110 years, it has been claimed.

The Centennial Bulb – which has previously been recognised as the oldest light bulb in the world by the Guinness Book of Records – was first turned on in 1901 and has only been switched off briefly in 1903 and 1937, as well as during an occasional power cut.