Hi,
I did not replace all 25 something lights in my RV with LED's. The basement lights are only on about 10 minutes every month, so no need to ever change them. The main ones I would use are the overhead near the entrance / dining area, where I primarily use a 26W florescent and a 8 W florescent. The ones over the couch, and the ones in the bathroom and bedroom.
For the bedroom, I used a 24 LED 5050 panel, I recently bought some for $1.20 each when I bought 50 of them from www.aliexpress.com First search for 24 LED 5050 panel, then search by price, lowest first. Weed out those who say $0.85 buy 1,0000 minimum, and start looking at a reasonable number, such as 10 - 25 each.
For my bathroom, I have 2 each 24 LED panels on each side of the factory light fixture, or 4 total that collectively draw 0.4 amps. This is plenty of light, and a bit more blue than before.
For the porch light, I also installed 4 of the panels.
Fred.