DETAILS: FOR ONE MOTOR, 24V DC. WITH DYNAMIC PARKING. WITH INTERMITTENT DELAY FEATURE FOR PERMANENT MAGNET ELECTRIC WIPER MOTORS. ENSURES DEPENDABLE CONTROL OF WINDSHIELD WIPERS ON HEAVY DUTY VEHICLES. NEGATIVE GROUND ONLY. 4 POSITIONS: OFF-PARK - INTERMITTENT RANGE - LOW - HIGH. PUSH-TO WASH ONE TO THREE WIPES AFTER KNOB IS RELEASED