... applied to traffic control, which is powered by solar-cell panel and battery system. Solar traffic light system also has 220Vac input interface ... 3, unit of power source It is made up of solar-cell panel,battery, AC charger. SpecificationOperation temperature-25~+70°CVoltageDC ... records.(see operation methods on <solar traffic lights>>2.1.3 Dimming functionIf required, the ...