Feature:1. Auto Recognition: Enables auto recognition on 12V and 24V, and the solar panels, battery, solar charge controller positive poles are all connected together, adopting negative MOSFET in series control circuit.2. Wide Application: The load control mode can be selected, the timer function can be reset for street light at night. Also allows for discharge capacity control and has discharge counter of ampere hour. Accurate temperature compensation, correcting the charging and discharging voltage automatically, improving the battery life time.3. Storage Function: This solar panel battery regulator can record the total run time of system, record timers of error during running time, record times of full charged battery, you don't need to worry about lost the data.4. Safer Protection: Comes with over voltage protection, short circuit protection, over load protection, overcharge protection, over discharge protection,roundly reverse connected protection.5. Simple Operation: Light in weight and compact in size as well, the whole installation can be quickly completed within several minutes.How to Use:Install and use directly. Specification:Item Type: Solar Charge ControllerProduct Model: PVSC-30AProduct Voltage: 12V 24VMaximum Solar Panel Input Voltage: 55VSelf Consumption: ≤10MAMaximum Charging Current: 30AMaximum Discharge Current: 30AOverload Protection: Yes, restart once after 2 minutes. Working Environment Temperature: -20℃-+55℃Protection Class: IP32USB Output: 5V 2.1ADC Output: 12V 24V Package List:1 xSolar Charge Controller1 x User Manual