Prepare your semi truck to be Ready for the Road Ahead™, with the Grote 2 / 35A Square 2-Pin 16-Light Electronic Flasher that provides steady flash rates for lights. To create a controlled pattern that can be seen by other vehicles or pedestrians, this replacement device sets a consistent flash rate for lights. Fashioned with a multipurpose design to be suitable for everyday driving, alarms, or hazardous situations. FleetPride is your First Click in Heavy Duty®.