EDMER
Control the electrical resistance of a circuit without interrupting the flow of current.The rheostat is consisted of ceramic core and a resistive wire wrapped to form a toroid coil with a wiper axle.Can be used widely as light dimmers and electronic starter speed control, is applicable for arc lamps, pumps, fans and blowers, respirators, d_e_ntal and model trains or other applications that require high voltage and current.