The Kleinn Air Horn GREEN lighted rocker switch will fit in most standard rectangular openings. Let’s people know you you only run the best, a Kleinn air horn. The switch is rated at 20 amps (12 volt) or 12 amps (24 volt) and has a pin to backlight the switch. Available in Amber, Blue, Green, Red and White (Must order appropriate part number). Fits in a standard 1 7/16″ X 13/16″ rectangular opening.