Adjustable current transformer 6V ->12V

Voltage-reducing converter for keeping a 6-volt device on a 12-volt circuit. An adjustable knob lets you vary the current from 6 to 12 volts. Its compact size means it fits discreetly behind (or under) a dashboard.

Example: keeping a 6 Volt wiper motor on a vehicle with a 12 Volt circuit. Red wire: to fuse
Black wire to terminal 30 of wiper switch
Potentiometer knob to ground