I highly recommended converting to LED for the power saving and less heat. The savings on power is more important if you dry camp often. The lower temps these put out can help on those really hot days.
I'm away from my trailer but IIRC all of the interior lights in my trailer take a T10 Wedge Base LED bulb, which replaces the OEM bulb types 912 or 921 wedge base bulb in an RV.
The typical Chinese or Hong Kong Ebay bulbs are inexpensive at $2-5 per bulb but are fragile. Order a bunch and try them out. This is a good way to find if you like warm white or bright white and what level of brightness you like. Some of these LED bulbs can be too bright for certain areas in our trailer. It's personal and you will find what works best for you.
But, the better more expensive bulbs (~$15) are more reliable in my experience.
Here are some links that can help you with plenty of other information.
LED 12 volt lighting: Long term results
Interior LED Lamp Upgrade
anyone found an LED porch light bulb that preforms as well as an Incandescent