Traditional incandescent lighting illuminates around the perimeter of the dial. GPS Speedometer display features: Time/Date Cumulative Distance (odometer) Trip Distance (tripmeter) GPS Coordinates with Heading Info Compass and Peak Speed Recall. Autometers Race Proven Air-Core Electric Instruments Provide Quick And Accurate Readings While Keeping Hazardous Fluids Outside Of The Vehicle. 12 and 16 volt compatible compatible with nearly every street car or race car electrical system. Kit includes fuel level sender (240E/33F). oil pressure sender water temperature sender GPS Antenna (sealed and paintable). sending unit adapters (1/4" 3/8" and 1/2" NPT adapters). bulb and socket assemblies red and green bulb covers mounting hardware and detailed instructions for installation.