I have a 2007 Journey, so checked my light bulbs.
I don't have anything like you show in #2. I wonder if that's just something someone stuck in there.
My reading lights all have a bulb like you show in #3. #1383 like this:
https://www.pplmotorhomes.com/parts/electrical-plumbing-lp-gas/lighting/light-bulbs/12v-light-bulbs_55-8107
Here's the LED replacement:
https://www.pplmotorhomes.com/parts/electrical-plumbing-lp-gas/lighting/light-bulbs/12-volt-led-bulbs_55-1076
The wall sconces and light over the dinette have this:
https://www.pplmotorhomes.com/parts/electrical-plumbing-lp-gas/lighting/light-bulbs/12-volt-light-bulbs_55-9951
Hope that helps.
