|The 1141 and 1156 bulbs are most common bulbs found in an RV; that being a Motor Home, 5th wheel, Trailer, or Pop-up. And, the most common place they are used is the Pancake light.
The two things to keep in mind about LEDs (which is why the are so popular) is, they don't produce the heat or pull the power of incandescent bulbs. The thing to keep in mind is size. Size does matter, which is why we have the measurements of the lights on the pictures.
. Another important thing to keep in mind is LED cluster bulbs product less light than the incandescent bulbs they replace. That can range from 90 to 40% less which is why the LED pads are the way to go, if you can put the particular item where you want it to go. The best way to go in a Pancake light is a LED Pad
They have their own plug.