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<p>Speaking of aiming of headlights, the largest number of vehicles
in this part of Texas that blind me at night seems to be 3/4 and 1
ton pickups pulling loaded stock trailers. Their lights may be
perfectly aimed while unloaded, but the loaded trailer changes the
aim of the headlights significantly. I don't know how to correct
this, unless the owner realigns his headlights while loaded. Of
course, that screws everything up when they are unloaded, a "catch
22".</p>
<p>Phil in TX<br>
</p>
<br>
<div class="moz-cite-prefix">On 1/19/2020 2:15 PM, Ken Knierim
wrote:<br>
</div>
<blockquote type="cite"
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<div dir="ltr">Steve, thanks for the link. My Google-fu is
apparently weak; I haven't seen that this website before.
<div>I will say that I've seen city buses (through whatever
contract company has it lately) and refuse trucks (City of
Phoenix, Town of Gilbert) running retrofit LED lamp assemblies
(they use a lot of Peterbilt trucks, some new, some not) which
helped me get started on this path; several are listed as DOT
compliant on heavy trucks (noting that they don't claim to be
OK on passenger vehicles using the same lighting equipment).
What I've read in that document link you sent (so far in my
reading) lumps trucks, buses and passenger vehicles all
together.
<div><br>
</div>
<div>I also spent a fair amount of time aligning the lights
better than they ever were with the old halogen and
incandescent lamps (of which were dubious quality on a good
day). I purchased a cheapo light meter for the project as
well (Urceri MT-912) and will see if it's calibrated enough
to verify light standards at the distances in the document.
I do believe that any inspection depends on attitude of the
individual and blinding a police officer isn't a good start
to it so I've been careful to make sure the aim point is not
offensive. I wish the new vehicles would fit this
description but they don't always. </div>
</div>
<div><br>
</div>
<div>Thanks again,</div>
<div><br>
</div>
<div>Ken in AZ</div>
<div><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Sun, Jan 19, 2020 at 8:15
AM Steve W. <<a href="mailto:swilliams268@frontier.com"
moz-do-not-send="true">swilliams268@frontier.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Ken
Knierim wrote:<br>
> Steve,<br>
> The Hella's have DOT stamped in them. That part is
good. The LED's <br>
> are claimed to be legal as well but cannot find any sort
of <br>
> documentation. Figured that out after I had them
installed... <br>
> Based on the number of HID lights here, I need more
information on local <br>
> legality and our illustrious state's information is not
forthcoming. <br>
> Back to asking someone I know and trust about local
legality. I <br>
> primarily use it for offroading anyway but I still need
to get back and <br>
> forth...<br>
> <br>
> Thanks,<br>
> <br>
> Ken in AZ<br>
<br>
Federal laws cover the lighting and states that any lamps
other than the <br>
OEM approved light source are illegal. None of the LED
retrofits are <br>
legal for highway use in the US. Doesn't matter what the
packaging says.<br>
That is part of the standard that says each lamp housing must
be <br>
designed around a particular light source. IE you make a
reflector that <br>
uses a halogen lamp, that is the only legal replacement lamp
for that <br>
housing.<br>
<br>
The states generally don't enforce it though, however if you
were to <br>
drive past a cop and your lights blind them, you will get
cited. Then <br>
they may take a closer look.<br>
<br>
This is the full code. If you want to know the federal stance
on it.<br>
<a
href="https://www.ecfr.gov/cgi-bin/text-idx?node=se49.6.571_1108"
rel="noreferrer" target="_blank" moz-do-not-send="true">https://www.ecfr.gov/cgi-bin/text-idx?node=se49.6.571_1108</a><br>
<br>
-- <br>
Steve W.<br>
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