1200W Pure Sine Wave Inverter with AC Charger DC 12V to AC 120V Output Ups B….
Five working mode : AC priority mode / Battery priority mode / Generator mode / ECO mode / Unattended mode. When you choose battery priority, the inverter will invert from battery dc to ac output. 110%-120% of the output was maintained for 30s, then the output turned to bypass, more than 160% maintained the 300ms.