... 3.State of charge 4.Temperature compensation 5.LCD display 15A 12V/24V Solar Charge ControllerA photovoltaic charge controller or regulator ... : (12/24V or 24/48V)7. Charging Current :5A,10A,15A,20A,30A( factory Seting) 8. Temperature compensation 9. Accurate clock ... , all system parameter: in digital value, system status as symbol. 15A 12V/24V PWM Solar Charge Controller for Solar System