Blinker bulb blew....ugh!!!

My left rear bargman bulb blew. I took the bulb to an auto parts place...and they sold me the wrong one. So...now I will have to search the forums to find the right part number. Today I installed a new 12v light fixture so I can read in bed. I got it at vintage trailer suppley. It was easy to install...and is nice and bright. I also finally took my tire with the slow leak to get fixed. There was a nail in it. Now....just gotta get a bulb for my next trip!!!!