Features MULTIPLE FUNCTIONS: Selectable load control method, resettable timer, discharge capacity control and AH discharge counter, this solar controller has complete functions. CIRCUIT PROTECTION: With reliable overvoltage, short circuit, overload, overcharge, overdischarge and reverse polarity protection, the solar panel controller is safe to operate. DATA STORAGE: The solar panel conditioner can record the total operating time of the system, error timers during operation and the number of times the battery is fully charged. EASY TO CONNECT: The positive poles of solar panel, battery, and solar charge controller are all connected together, with 12V 24V automatic identification system voltage. SAFE OPERATION: This LCD solar charge controller has accurate temperature compensation, automatically corrects the charge and discharge voltage, greatly improving battery life. Specification: Item Type: Solar Charge Controller Product Model: PVSC 50A Product Voltage: 12V 24V automatic identification Maximum Solar Panel Input Voltage: 55V Self Consumption: ≤10MA Maximum Charging Current: 50A Maximum Discharge Current: 50A Overload Protection: Yes, restart once after 2 minutes Working Environment Temperature: -20℃-+55℃ Protection Class: IP32 USB Output: 5V 2.1A DC Output: 12V 24V Package List:1 x Solar Charge Controller 1 x User Manual Package List 1 x Solar Charge Controller 1 x User Manual