Outfit your semi truck to be Ready for the Road Ahead™ with steady flash rates for lights, with the Grote 1 / 20A Square 2-Pin Variable-Load Electronic LED Flasher. With a straightforward design, this replacement device is able to set a consistent flash rate for lights, creating a controlled pattern that can be seen by other vehicles or pedestrians. Manufactured with a multipurpose design to be suitable for everyday driving, alarms, or hazardous situations. FleetPride is your First Click in Heavy Duty®.