... sunshine, can work 13 hours per day, backup for 6 consecutively rainy daysRated voltage17.2VRated current4.36 AOpen ... 91AWorking tempreture - 40°C ~+85°CCell efficency16%Solar panel TypeMono-silicon solar panelFrameAluminum alloyLight source40W LED lamp, Super bright φ ... : 20000 H-50000 HBattery2* 80 AH,12V, batteryLife span: 5-8 yearsController24V / 10A, automatically time and light control, overcharge ...