I just replaced all of mine. The ceiling lights unscrew by turning the glass inserts about a 1/4 turn ccw. The lights in the cabinets unscrew by turning the chrome ring 1/4 turn ccw.I used warm white 3w LED from Amazon, 10 for $14 with free shipping(prime) and got them in 1 day. Brand Name is Rayhoo. Time will tell if they are cost effective but they work great and are the same color as the halogens.
John & Susan, Olivia the dachsaund
2011 Georgetown 337DS
Toad 2003 Dodge Dakota
Hampton Roads VA