Trek CompassTrek Compass Features Ideal for Runabouts, Center Consoles, Ski Boats, Flats Boats, Bass Boats, Cars, Trucks, RV's and ATV's 2-1/4 Direct Reading Dial with Large Numerals for Easy Reading Black with Black Dial, Bracket Mounted Strong Directive Force Magnets and Composite Dial for Fast Performance Built-in Compensators to Correct for Deviation Extra Large Diaphragm and Rugged Construction Provide Extended Operating Temperature Range High-Impact Rubber Accent Strip Built-in, 12-Volt Green NiteVu Lighting 100% Repairable Exclusive 5-Year Ritchie WarrantyApprox. Shipping Weight 9 oz 256g Notes Comes standard with 12 volt lighting.For all Trek models built before 2005 please see the service manual page 2-2 or contact Ritchie for replacement light.