... Intelligent control PWM controlC hot selling12V/24V 20A Solar charger controller regulator wholesale price100% manufacturer Characteristics Control circuit use ... , reverse connection, thunder andlightning, PV panel reverse current, over charging and discharging etc.LEDindication on system ... 20A12v,24V 1.25 rated load current 60sec, 1.5 rated loads current 5sec, over load protection action. ...