... longer life hours and professional after service 3.DC/AC input 4.CE,ROHS 2000 Watt Pure Sine Wave ... converter that can convert input DC power into AC power (110V or 220V),and it is small,easy to use ... -grid inverter convert the DC in the batteries into AC (110V or 220V) to the load.2, Grid tie inverter ... ,convert the DC generated by the solar panels directly into AC ...