4 Pin Over 500A AMP DC 12V Relay On/Off Car Auto Power Switch Contactor

4 Pin 500A 12V Car Auto Power Switch Dual Battery Isolator Relay Start On/Off. 1 x 500A 12V Relay. Switch TypeCar Power Switch. Universal 12V applications. Extends battery life. The color may have different as the difference display,pls understand.

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