I have a 53 SM that I converted to 12v a few years back. For the light switch I remove it from the box and located the hot wire for the switch. next I removed the resistor - next I located the wire for the tail light hooked it to the switch - next I located the wire for the head light and hooked that to the switch. Now when I turn the lights on the dim position all the lights come on. (head and tail) When I rotate to the Bright position the head lights go out and only the tail light remains on. I don't remember anything about a high and low charge. Just a resistor to reduce the voltage to create the bright or dim lights. I would have like for the tail lights just to come on in the dim position and all come on the bright position. As I remember the two small bolts that hold the switch in the housing is a pain to install and when all the lights would work I left it alone. Hope this helps James
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Today's Featured Article - Measuring with Calipers - by Staff. The legs of inside calipers are curved outward at the extremities to facilitate measuring small holes, while outside caliper legs have a large curve inward to increase their capacity for large work. Firm-joint calipers are adjusted approximately by the hands and then set to the feel of the work by tapping them on a metal surface. It is a common practice when opening calipers by this means to tap the top of the joint. It is better, if possible, to tap the inside of the legs, as repeated blo
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