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2017 - 2022 Super Duty The 2017-2022 Ford F250, F350, F450, F550 & F600 Super Duty Pickup and Chassis Cab
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Old Aug 31, 2018 | 10:23 AM
  #46  
18SD_Lariat's Avatar
18SD_Lariat
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https://www.nhtsa.gov/DOT/TP-108-13.pdf

In this case, I have researched this quite a bit. Back when people used to say Sylvania Silverstars were illegal. We all know they are not, but they still put out more light than the auto manufacturer intended... I have 0 LED lights and dont care to have them, but this argument has gone on for as long as brighter bulbs have been available.

Above.. Section 12.23. You are welcome. This puts it in easier to understand terms for some.
 
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Old Oct 20, 2021 | 08:58 PM
  #47  
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rome008
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Joined: Oct 2021
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2018 f250

I was seeing if someone could help me. I have a 2018 f250 and it came with halogen light. So I swapped the bulbs out to led's and all 4 lights come on when I hooked them up then when I started the truck only 3 lights work and the 4th one wont come back on. So I replaced it and it did the same thing.
 
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