AC/DC inverter is designed for switching DC24V to AC110-220V. They can be used outdoors or on home appliance as emergency power. Usually, cord with AC power socket and the DC power cord with DC battery. When the load connects to the Cower cord with DC power, if the commercial power falls, the inverter will convert the batteryvoltage to AC voltage and go on supplying. When the commercial power restall,the inverter will switch to charge the battery by itself. When the batteryis fully charged, it will stop automatically. producing area:China