[TR] Headlight replacement

[Randall]

> Here in the states we can buy what is called "Sealed Beam Halogen"
> bulbs
> which externally look like the old style sealed beam headlights but
> contain a
> small quartz bulb inside (quartz-halogen).

And, at least in my experience, don't work as well (or last as long) as good
H4 lamps.  The light pattern they put out is the same as the old tungsten
sealed beams.

-- Randall