As of yesterday, there are NO incandescent bulbs left on or in my popup trailer.
Last year, replaced all interior and side exterior (amber) fixture and front loading white fixture with LED Bulbs.
Three weeks ago, replaced the rear taillights with LEDs. Yesterday, finished a week long replacement of all the side marker lamps (7-red, 4 amber). (Took a week due to sudden rainstorms that kept popping up just as I was ready to start.