1139IF bulb replacement
For anyone following this thread, I finally found an upgrade, replacement LED bulb for the halogen 1139IF. These are used in many of the overhead reading lamps found in your RV's.
Here it is:
R12 LED Bulb - LED 1156 Bulb - BA15S Retrofit
I found them online via Superbrightleds.com
Price: $9.95 each
They said that the 1156 bulbs work in the 1139 base. I ordered in natural white instead of warm white because the natural white had a higher lums and I wanted all the brightness I could get. I installed them but have not turned them on yet to see how they work. Rig is stored for the winter. Rainy, stormy day and didn't want to go out to hook up the battery. Know what I mean!!