Originally Posted by 5picker
Well in either case (12v or 120v) there are lots of LED bulbs to choose from these days.
Since they are 12V light bulbs to begin with, remove one and take it to a car parts place for an LED replacement with the same base. Many of the standard bulb bases will come in a couple of brightnesses and possibly red, yellow, and white. You will pay a lot more, but you will get what you need, and the control circuitry won't freak from the 14.4V your converter sometimes puts out.
I have done this for my brake/tail lights, and will do it at another time for the clearance lights, the porch light, and the tongue light.
Or order online and pay less. The bulb number (read it off the 12V bulb) should specify the correct base.
The newer PUPs and A-frame have LED lights hard-wired in - it's not just a simple bulb replacement. You get to replace the entire fixture - ask me how I know.
2014 Rockwood A122 A-frame
2008 Hyundai Entourage minivan