your ceiling fan may also be 12VDC some are 12VDC so they will work when you are running off the battery only...
My trailer gift box had spare bulbs provided by the dealer in their original packing - might look for that to show you the number...
You can probably just shoot JAYCO an email with your model number and they can tell you... I understand if you give JAYCO your VIN number they will provide you with any and all info on your trailer for the asking... drawings - schematics - etc
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA
RETIRED DOD DOAF DON CONTRACTOR Electronics Tech 42YRS
"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"