13-pin socket for mounting on the vehicle, this socket is equipped with a micro switch for fog lighting Characteristics 13-pin Plastic Fog lamp switch Micro switch (optional to connect) Includes rubber seal What is a micro switch? A microswitch ensures that the fog lights of the car are switched off and those of the trailer are switched on when the wiring harness is connected. You are not obliged to connect this if your vehicle does not have this facility.

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