... Portable solar generating system voltage:220V/50Hz Inverter power:300W,sine wave 3successive days on cloudy and ... solar generating equipment1,AC output voltage: 220V/50Hz2,Inverter power:300W,sine wave3,Working time(full charge) 4hours/day, ... :400Wp,service life:20years5,Solar energy dedicated maintenance-free storage battery: 300AH6,Control cabinet(include: controller,inverterand other accessories) ...