Choice is to replace bulbs - or entire fixtures. I found replacing bulbs to be significantly cheaper.
Need to match the kinds of bulbs you need - I had 4 different types - one for the pancake lights (a LOT of these); one for the bathroom fixture (bulbs not fully enclosed); one for the outside 'porch' light; and one for the range hood (110v).
Look for bulbs rated HIGHER than 12v - remember your fully charged battery or plugged in unit will put out close to 14v on those circuits. A 12v bulb can overheat. Mine were all rated 12-24v (except the range hood of course).
The pancake replacement bulbs needed a little care inserting to not bend.
Only replaced one bulb from the lot in over a year (ordered a few extras to have on hand).
'Color' temperature is a personal preference - I went with a warm white (not the harsh 'near blue')...
Also added LED light strips for indirect lighting - a mix of soft white and RGB - inside and on my awning.
I'll look for links to what I bought and post when I find them...
Everything runs MUCH cooler.... and reduced battery draw.
On our old 5th wheel I replaced all the fixtures with LED ones. Yeah it wasn't that cheap: Waited for camping world to have a sale on the fixtures and replaced them in batches of 3 or 4. When I was finally finished I had calculated that all of the new fixtures used less total current than a single one of the old ones.