CVR FEATURES: INPUT AC160V~250V 50/60HZ OR AC80V~130V WITH OVER-VOLTAGE ROTECTION OUTPUT AC220V OR AC110V WITH DISPLAY OF OUTPUT VOLTAGE CVR-350W 500W 1000W 2000W 3000W 4000W 5000W AVR FEATURES: INPUT AC140V~250V 50/60HZ WITH 3 SEC/3 MIN DELAY FUNTION WITH LOW/OVER-VOLTAGE PROTECTION OUTPUT AC220V AVR- 500W 1000W 2000W 3000W 4000W 5000W 7500W 10000W