Skybuck Flying said:
Accidently, or deliberate tick with hose against lamp pole...
Doing it repeatedly makes the lamp shine brighter and brigther until it
pops dead.
(Philips lamps)
This illustrates the reason for rugged or rough service lamps, which are
used in portable drop lights that might get banged around or experience
shock and vibration from hammering, drilling, etc. Such lamps are built
with more filament supports so the hot filament does not stretch and
eventually break. Mechanical shocks while the filament is incandescent
might cause some turns to short out and thus cause more current and higher
brightness.
Phase out incandescent lamps and use CFLs. Even better are LED lamps, and
they are very rugged and should last just about forever, but I've heard of
some limited lifetime issues, mostly due to phosphor coatings
deteriorating. I don't think that's an issue with white LED clusters that
are composed of red, green and blue. They also have the advantage of being
adjustable for color temperature.
Paul
