So I noticed my 32" LED light bar wasn't working. First thought fuse, right?!? Ok fuse was blown too lol. However when I removed the switch I heard rattling ( not good ) so as I often do when I know I can't mess it up more, open it up and give it a look.  The very small brass roller was off and the metal connection strip was also floating around.
So, with needle nose pliers holding the brass roller, it flew out, under the seat, down under the plastic. Ugh. Luckily found it.
However, these are very simple to take apart and fix. Carefully pry the tabs open and it will come a part. 4 small springs inside. Careful not to loose these.