... home use controller :12V,10A battery :12V, 50AH. Product Introduction:1. The small home solar system for home use is intelligent product ... emergency needs.3. Solar panel shelf life is 20years at least.4. Power Control cabinet with inverter, battery and controller including, Shelf ... life of key parts such as inverter and controller are 8-10 years under correct usage.5. Specification ModelHH- ...