Interior lighting

Best?
http://www.commandelectronics.com/int_led.html

There are lots of cheaper ones but these are the best in my opinion. Command is the OE fixture in many RVs.

There is really no "best" as regarding standard of fixture and lamp type. There are a lot of choices just in the T10 standard.
FWIW, what I've found give the best illumination are SMD LED panels with multiple LED count. The panels direct more light downward than a cob style lamp. I bought mine from various Asian resellers on E Bay, initially buying small sample quantities until I arrived at a configuration of LED count and color that suited my needs. I am using mostly SMD 48-3528 panels in Warm White for general illumination but am using different ones for task lighting and reading lamps.

I would suggest you search through the various LED threads on the Forum, buy just a couple of different lamps, and then purchase what you need. I wouldn't buy the more expensive US offerings as they may have inherent regulator issues and the Asian offerings are very inexpensive. I haven't had a single panel failure in over a year's use.

It's all going to LED these days.