Servotron Electricals & Electronics supplies Three Phase High Voltage Dimmer. Servotron Electricals & Electronics is an ISO 9001-2000 certified company which offers automatic/manual servo voltage stabilizer, all types of transformers, Variac C.V.T and Variac U.P.S etc. Three Phase High Voltage Dimmer is capable of providing unremitting adjustable voltage A.C. Supplies. Three Phase High Voltage Dimmer has high voltage fluctuation withstanding capacity. It is the most handy source of erratic voltage, current, or power in A.C supply system that is required for Current, Power, Heat, Light and Motor.