1、The role of the solar charge and discharge controller is to adjust the power delivered from the solar panel to the battery. 2、Use LCD display, all settings can be completed by one‑key operation. Extremely convenient and intuitive to use to control the working status of the entire system. 3、Dual USB output, maximum current up to 5A, system voltage 12V/24V automatic adaptation. 4、Automatic disconnection when the battery is full, automatic memory data storage, easy to use. 5、Perfect protection function, electrical protection for reverse connection, short circuit, over current, etc. 1 x Solar Charge Controller1 x Manual Conditon: 100% Brand NewItem Type: Solar Charge ControllerMaterial: PlasticColor: As Pictures ShownOptional Model: z10, z20, z30System Voltage: 12V/24V Automatic AdaptationRated Charging Current: 10A 20A 30ARated Discharge Current: 10A 20A 30AMaximum Photovoltaic Voltage: Maximum 23V for 12V Battery; Maximum 46V for 24V BatteryBoost Charging Voltage: 14.4VFloating Voltage: 13.7V (Default Value, Adjustable)Discharge Cut-Off Voltage: 10.7V (Default Value, Adjustable)Discharge Recovery Voltage: 12.6V (Default Value, Adjustable)Charging Recovery Voltage: 13VLight-Controlled Turn-On Threshold: PV Panel 8V (Light-Controlled Turn-On has a Delay)Standby Current: ＜10mAWorking Temperature: -35℃-60℃USB Output: Dual USB Output, 5V/ 2.5A (Maximum)