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Old 01-21-2019, 03:25 PM   #3
sourdough
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Join Date: Feb 2014
Location: W. Texas
Posts: 17,687
I don't have the pin type lamps but I do have experience with using 12vdc only LEDs. They don't work well. The voltage in the RV fluctuates too much to fit within the narrow band of voltage the 12vdc only lamps want. In my experience the 12 volt only degrade very quickly and the LEDs go dark or start flickering very soon. I replaced ours with 12-28vdc leds and all is well.
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Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
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