What are the wires for on my Ritchie Magnetic Compass? Most Ritchie compasses come equipped with a night light system which can be connected to the boat’s DC electrical system. neptuneweb2019-11-16T08:35:05-05:00November 16th, 2019| Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail