The original map light shorted out and has been disconnected. A new map light has been ordered based on a recommnedation from Paul. It is considered a minor modification, and just needs a logbook sign off. It should be installed soon. It will have a toggle switch for off, on (white) and on (red).
Details of the light can be found at the manufacturer’s website OPLight Maplight 6 Page and on the product page at Aircraft Spruce.