> The DOT was often funny that way. When sealed beam headlights were
mandated in 1968, only round 7" sealed-beam headlights were allowed at
first, then a bit later the rectangular sealed beam units. The often
quite attractive light assemblies used in Europe were always replaced
with usually much less attractive assemblies with the US mandated units.
because the DOT required sealed beam and the Europeans don't make sealed
beam units. the original logic was that early non-sealed headlights tended
develop rusty, ineffective reflectors over time. the Europeans dealt with
this with the rubber caps over the rear of the units.
This state of affairs persisted until the US manufacturers started
homologating other headlight shapes (if memory serves, this was roughly
around the time of the first Taurus, so early to mid 80s).
the reason is that the DOT approved the 900x halogen bulbs with the rubber
o-rings around the base.
It wasn't something that just happened, either. We might still be
stuck with sealed beams today if it weren't for Ford's lobbying
efforts. Why they didn't legalize modern beam patterns at the same
time is still a mystery.
Within a few
years, all cars, US and foreign, had drastically different headlights.
The European cars usually just using the same assemblies they'd been
using in Europe for some time.
no. the european assemblies in us model cars may look like the traditional
euro lights, but they take 900x bulbs, not H bulbs.
And the lenses are horrible, offering little improvement over
'60s-era sealed beams.
richard
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Richard Welty [email protected]
Averill Park Networking 518-573-7592
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