Specification 300W12V 300W24V 300W48V Input max voltage 15V 30V 60V Input min voltage 10V 20V 40V Alarm voltage 10.5V 21V 42V Rated power >300W 30seconds emergency power >340W 2seconds peak power >600W Output frequency 50H/60Hz ±3% Output voltage 110V / 120V / 220V / 230V ±5% Efficiency 82 - 88% THD <3% Protection recover automatically About 10 seconds Dimension 16 * 8.7 * 4.6 CM Weight 0.6Kg Working temperature -20~40℃