... electric region. It is a set of solar power the equipments, having to sweep free from pollution, ... panel bracket ,battery, solar charge controller, power box and so on.System design:Item Equipment Specification unitsquantity1solar panel50w /12vPCS12Battery ... 16Cables and screwsSet 1FunctionOperating load with the 50watts system Item Equipment Specification unitsquantityWorking hours/per day 1Energy ...