To expand somewhat. I bought the plate type LED lights from M4.
http://www.m4products.com/plate-style-led-lights/And removed the existing sockets in the ceiling fixtures, and cut off the socket adapter ends on the wires and spliced in the wires in the place of the original sockets. I removed the heat shield/reflectors and stuck the flat plates in their place. I used both 24 and 48 element lights depending on the area I was lighting. I used the natural white, not the cool white (bluish) or the warm white (yellowish). having the LEDs mounted on an aluminum plate spaced from the circuit board with the driver, makes it operate very cool and they last forever.
For the bi-pin (G4) reading lights with halogen bulbs, I used the Elite series and had one fail in the motorhome, M4 promptly replaced it. Only failure of any kind I've had with their products.
I started out with cheaper LED lights to replace the original bulbs and the LED elements failed very quickly, no heat sinks.
Charles