... energy 2.Service life:25 years 3.Ersol solar panel system efficiency 18% 4.CE,GS certificate Product:Solar panel ... photovoltaic;2.High efficiency solar panel system:18%;3.Use mono or poly solar panel system;4.CE,GS Certificate;5.25 ... ,10 years warranty;6.Solar panel system include battery,controller and inverter. 5KW Solar panel system specification Capacity5000VAName of LoadPower(W)QuantityWorking ...