TR-31 Trek Trek 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 Warranty Approx. Shipping Weight: 9 oz (256g) Replacement Parts Light Assembly: TR-0050 ASY 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.