Relay type, Single phase, LED digital display,aluminum coil,small dimension,small distortion of output ... office computer, laboratory and factory precision instruments.12. Certification:CE,SONCAP,OEM Model and specification:Application areas:1.CNC machines ... microprocessor based machines Electrical Voltage Regulator, AVR, Led Digital Display Voltage Stabilizer 110V 220V (YVR-500VA,relay type,single ...