Don't forget to switch out the light.

Ha! Thats awesome.They dont make things today like they used to.

The absence of that wee power surge through the circuitry every time the circuit is energised would have a lot to do with the longevity.

It's a bit like a gas-turbine engine in an aeroplane or a helicopter. Every time you start it up, you subject it to thermal shock, so that is therefore one less cycle to go until the end of its life. It's the same with many things electrical, including incandescent lamps, and flourescent/neon lamps. I recall reading a news story a couple of years ago about an incandescent lamp in a fire station somewhere in New York City which has been burning continuously for many decades. Because it has been continuously energised, it hasn't been subjected to the start-up surge of current when it would other wise have been illuminated.