solar power supply first, and grid feed be the supplement of system. provide the load power from solar or utility electricity. Specifications:10A, 12V, Load 60W max10A, 24V, Load 60W max10A, 12V, Load 100W max10A, 24V, Load 100W max Features Microcontroller digital accuracyPWM Charge modeState of charge (SOC)Specially designed for solar/utility hybrid systemBattery backup supply power ...