270 dial sweep provides quick one glance accuracy. Track tested and race proven these gauges use precision electric senders to keep hazardous fluids out of the passenger compartment. All Electric gauges perform a dramatic opening ceremony with a full pointer sweep and self check each time the vehicle is started. Click on the Demo tab above to see this! All of the below gauges display BOTH Green & White. These are designed so that you can display one color (white) during the day and then at night display the other color (Green) Of course you can display one color all the time or reverse the display. That's Four different color options from one gauge!