10W Small Solar Energy System controller :12V,10A battery :12V, 9AH. Small Solar Energy SystemMain Specification:Solar Panel:10WSolar Panel Size: ... (20W) :5hoursPackageContents:Main system, Solar Panel, LED Light(12V2W)(optional), Fan(DC 12V,10W)(optional), , Mobile Charging ... solar panel clean and there isnt any sundries on it, one time clean at least per month. 10W Small Solar Energy System ...