RELAYS TYPE. MODEL: CVR-300300W CVR-500500W CVR-10001000W CVR-15001500W CVR-20002000W CVR-30003000W CVR-50005000W VOLTAGE REGULATOR INPUT VOLT: 80V-130V OR 160V-250V AC OUTPUT VOLT: 110V OR 220V +/-8% WITH OVER CURRENT PROTECTOR; WITH OUTPUT VOLTAGE INDICATION.