Quote:
Originally Posted by sourdough
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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I don't have the pin type either. I started to replace my 121s with a type of LED for 121 replace and are hard to put in the 121 socket. So thinking may have gotten the wrong "recommended" type of LED. Do you have a better description of the 12-28vdc
leds that you used. Thanks