... regulates the voltage from 0~220 V 3.energy-saving three phase voltage regulatorApplicationTDGC2, TSGC2, TDGC2J, TSGC2J series voltage regulator without a waveform ... other characteristics to voltage adjust temperature control, dimming, power control and other purposes.It is widely used in ... speed adjust, dimming, and power control purposes, it is an ideal AC voltage regulator power supply. three phase ...