Equipped with internal brass coils and perfect conductivity,ensures a quickly motor starts and current flows. Reliably control your winch with our winch solenoid Relays contactor. With a 20-30 second cooling period between cycles,it ensures and durability. Suitable for winches weighing up to 12,000lbs,it can quickly starts the motor with high starting power. The packaging includes 1 Relays and a connecting wire to ensures easily operations.