THIS IS THE BASIC VOLTAGE REDUCER THAT YOU WOULD USE ON YOUR FUEL GAUGE. THIS GOES BETWEEN THE IGNITION SWITCH AND THE FUEL GAUGE. THIS WILL KEEP YOU FROM BLOWING OUT YOUR FUEL GAUGE WHEN YOU CONVERT TO 12 VOLT. WORKS VERY GOOD AND IS EASY TO INSTALL.  REMEMBER THAT YOUR GAUGE IS OHMS FROM THE GAUGE TO THE SENDING UNIT.  
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