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Arthur Conan Doyle Arthur Conan Doyle is offline
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Default LED bulbs not so bad

Don Y wrote:

Tell the factory that! Car rides up higher than a
regular car -- should all truck drivers deliberately
point their lights at the ground (instead of "aiming"
them as required?)


The height of the lamp isn't the issue. As you noted, it's the aim point and the
coverage area. Misaimed headlights are frequently too high and stray into the
oncoming lane.

Should folks not be allowed to use halogen and HID lights
because they're brighter??


They aren't. The DOT regulates how bright a standard headight can be.

http://www.ecfr.gov/cgi-bin/text-idx...e49.6.571_1108

Table XVIII and XIX - note the Maximum Photometric Intensity column. People
think High Beams means brighter - it doesn't. It means the aim point is higher.
People also think some lamps are brighter because the color temp is different -
more blue than incandescent or halogens. That's also regulated, but not as
tightly.