I have changed the bulbs in both my toyhauler and my moho, and I have used the M4 retrofit ones:
https://m4products.com/led-rv-retrofit-bulbs/?gclid=CjwKCAiAv9ucBhBXEiwA6N8nYLJT9FVQXLdgdjbTlSc1-bt27zC8Ke6O_4unLwdCkvdPuzcGP80SQxoCYoMQAvD_BwE
I used the 3500K which is much warmer and I love them. Way way brighter than the incandescent units.