The Cole Hersee allows the use of 6V accessories in 12V electrical systems. The resistor coil is embedded into the ceramic insulator for effective heat dissipation. Voltage reducers can be wired singly in series or in parallel. The 68068-BX is designed for use with low amperage load accessories. It features two screw terminals with lockwashers, 7/16" -28 thread mounting stem, a size of 2" x 2 9/16" x 1 1/2.” 1.0 Ohm resistance and 35W.