I did the amber only bulbs on my 2012's dtrl. Very easy install. My only
complaint is that the 3157 LED bulbs I got from csjumper are a completely
different/darker shade of orange then the parking lights and mirror turn signals
and I am way too much of a perfectionist for my lights not to match. So now I am
looking to buy some new 3157 LED builds that are a closer match in amber color
to the factory incandescent bulbs.
Like you. I'm really particular about my lights matching.
This is the ONLY
reason that the only incandescent bulbs I have left on my truck are the DTRL/Front Parking Lights, Front Side Markers, and Rear Turn Signals.
I have tried several different amber bulbs from different places/manufacturers, only to be disappointed. The problem I have seen on many of the amber LEDs is they change color slightly towards orange when they heat up. The wavelength of the "amber" color led strips I have is 605nm. anything higher than...say 610 nm has more red in it (orange)
It may be possible to limit the current to some of these amber led bulbs to prevent them from heating up as much. The only problem with that is, the amount of light output is directly affected by the current flow.