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Today I put some new headlights in, the nice one, with smoked lenses and projector lights. For the Parking light / Turn signal I ordered some LED's with switchback function.
turn signal lights amber, parking lights white, all in one
And for the turn signal, I installed resistors to avoid hyper flashing.
BUT:
the amber turn lights are not so bright, so, if the parking lights are on, nobody can see the amber part of the bulb.
Did I do something wrong??
I was hoping :switchback means, there is amber OR white light at the same bulb.....???
i have been experimenting with amber LED 3157's in my 06 SD for two months now. I have learned that its hard to get an LED to produce bright amber light. in your case using a switch back (two colors in one bulb) cuts down on the number of LED's you can have for each color which affects the amber output the most
solution may be a premium LED set up like the VLEDS V3 Triton
you may also want to use an electronic flasher rather than adding resistors so as to take advantage of the LEDS lower power consumption.