I had heard the News on Friday Afternoon mentioning this - At a Fire Station, there is this 4 watt Incandescent Lamp which has been active 24/7 for 100 years. Only heard the story in passing [as in I was passing by the TV set while the story was "briefed" - the little bite of stories right before the commercial breaks - kind of the "Bumper Stories"???].
My thought was the lamp is like a 230 volt lamp, running at 120 VAC, which would make it's life expectancy virtually infinite - until being knocked by the passing Fire Fighter and such!
Like GJ said, it wouldn't produce the brilliant white light that is familiar to an Incandescent lamp, but instead would produce a really deep orange light output. In all fairness, this is considered light output, so the lamp has a valid claim - 100 years of life.
Scott SET
