Several ways to proceed but most will need a bit more info as things in the electronics of RV change quicker than most!
One way is to call one of the Winnebago dealers that you might find in an online search, depend on them to follow when you decribe the RV and location of the specific light as there are several different builds and several different LED lights, making getting the right one something of a gamble?
But I don't like two things about that plan. One is the gamble of getting the right one, depending on the exerience of the person you talk to and then the price is often higher at Winnebago specific parts!
I trust myself more than unknown folks I may run into when calling! So I do the legwork to do my best at getting the right part at the right price!
Personal choice involving time spent versus what might be simple but which comes with some risk of getting the wrong part?
I go to the interactive parts catalog here:
https://catalog3d.winnebagoind.com/menu/Parts.htm
Knowing the right year, model, and floorplan as well as 7th digit of the serial number, I can choose the correct set of drawings. This info should be opn a label near the driver's side!
Click that specific RV to get the sublist and go to electrical. Click the electrical and go to the 12 volt for the lights.
When you get the correct RV and correct portion of the parts, it gives you a view where you can go to the lower right corner to choose top,bottom, left, right, etc for view angle.
Click these snips to get a better/ larger view!
Then if you can spot which specific light is needed, you can zoom in to be more precise.
Before scrolling to zoom , go to lower left and click the "cross" and then click on something near where you want to stay centered as you scroll to zoom or click and drag to move around the drawing!
Takes a bit of play but when clicking on the correct light, it will highlight that part in the list at right of part numbers!
But when confident of the correct part number, a Google search just using that part number will often turn up a few different choices to shop the part. Things show up at Winnebago, inde[endant RV dealers, Amazon , E-bay, or even private sellers at times. It's the big "Easter egg hunt"!
Many different ways to float the boat, so hour choice? Best of luck and you can find lots of interesting facts about the RV that you never thought to find out!