>I don�t know what defines the US-headlights as "sealed beam", does it mean
>they�re sealed so you can�t reach into them? Otherwise, our european
>headlights get foggy/cloudy because of deposits like burned dust etc.
>
>Remove the bulb and rinse the lamps with cleaner, alcohol, whatever, and let
>them dry. They look like new afterwards.
>
>Raimund
>P.S.: What makes sealed beam lamps "sealed"? Are the vanagon�s U.S.
>headlights sealed beams?

Sealed-beam lights have a 1-piece molded glass reflector/lens, and is
actually a large heavy crude lightbulb. Lens quality is very poor in
those I have seen.

Generic nonsealed-beam lights like proper H4s have a good-quality
glass (or plastic) lens with a crimped-on plated metal reflector. The
bulb plugs in from behind, and is "sealed" by a rubber boot, which
never really does seal.

Model-specific H4 lights have a glass or acrylic lens sealed into a
plastic housing, with a metal reflector within. The bulb plugs into
the back, with ill-sealing rubber boot.
--
Andrew Grebneff
165 Evans St, Dunedin 9001, New Zealand
<andrew.grebneff@stonebow.otago.ac.nz>
Seashell, Macintosh, VW/Toyota van nut