At more than one million hours of use and counting, this bulb proves that they really don't make things like they used to. The Centennial Bulb, as this light has come to be known, is the longest-lasting light bulb of all time. It has been burning continuously since 1901, excluding a short interval in 1976 when the bulb was disconnected from electricity for 22 minutes while the firestation was moved to a different location.