At 12:36 PM 7/26/2013, neil n wrote:
>So electrical "Liquid Tape" won't hold up over the long term?

I don't believe it will.  You notice they use 
glass-fibre insulation for the wire lead (and 
sockets for pin-type halogen lamps are 
ceramic).  I believe the back of the lamp may get 
up to several hundred degrees Fahrenheit.  I used 
to have chronic contact problems with my Hella 
fog lights using H3s, and there was definite heat discoloration of metal parts.

>I see a rating to 255� F    Would that suffice? In my case, the light
>will see short "on" times unlike it's original intended use as a
>driving light.

Yes, that was my excuse when I put larger lamps 
in my backup lights, the way Terry Kay 
recommends.  That ended in tears and deformed 
taillight fixtures.  I don't think vinyl is good 
stuff to have anywhere near a halogen lamp.

Just by the way...until recently I thought that 
halogens lasted a long time because the halogen 
gas kept the filament from boiling off 
somehow.  T'ain't so.  Halogens last a long time 
because they're under 400 psi cold and more 
pressure hot, and the high pressure keeps the 
metal from boiling off the filament quickly.  But 
to hold the high pressure the capsule has to be 
tiny, which means that it has to be quartz so it 
won't just melt.  And because it's tiny the metal 
that *does* boil off would blacken it quickly, 
and what the halogen gas does is -- if you burn 
it hot enough -- keep the metal from condensing 
on the capsule.  So they have to burn very hot or 
they blacken very rapidly, which means they're 
not tolerant of overvoltage.  Tricky little 
devils, not tolerant of sweat contamination on 
the envelope; and unpleasant when they explode, hot or cold.

Yours,
d