You mean like this?
View attachment 796
Easy
1) Remove the screw on the housing.
2) Pull down on the side with the screw hole. A paper clip or something in the hole will help since it’s in there a little tight. The other side has a tab so you can't just pull the entire housing off. You have to kinda slide it off.
3) Once the housing is removed, twist the socket to free it from the housing (note the wire is kinda short so be careful not to damage the wire).
4) Pull the light bulb from the socket and replace it with a W5W LED bulb
5) Reverse the process
6) Repeat the process on the other bulb.