The LED should be standard. I witched mine out . Longer battery life important to me. Less heat also important in the summer time when trying to cool the trailer down .
Wife likes to read in bed. Changed the lights over the bed first as those lights were hotter than you know just above my head.
To save money in most fixtures I replaced only one bulb ( the bulb that turns on first) in each fixture.
Use the links provided and shop for the best price you will be happy you did so.
Switching bulbs cost me less and does more for me than adding another battery did.