Feature: 1. BLUETOOTH CONNECTION: This solar charge controller supports Bluetooth connection, allows mobile APP to view data and settings anytime, anywhere, with 7 day cloud data storage. 2. WIDE COMPATIBILITY: Works with 12V, 24V, 36V, 48V, and 60V systems, providing flexibility for various applications, with dual USB output of 5V 2A. 3. DATA STORAGE: Built in industrial microcontroller for automatic management, able to store various parameters set by users, will not lost when the battery runs out. 4. FUNCTIONAL LCD SCREEN: Intuitive LCD display screen can clearly display status and data, and can switch modes and parameter configurations. 5. MULTIPLE PROTECTION: Built in protection against overcurrent, short circuit, reverse connection, open circuit, fully automatic recovery, ensuring the safety of your batteries and devices. Specification: Item Type: MPPT Solar Charge Controller Material: PC System Voltage: 12V 24V 36V 48V 60V (Self Adaption) Maximum Photovoltaic Voltage (12V 24V): 18V Solar Panel for 12V Battery, 36V Solar Panel for 24V Battery (<40V) Maximum Photovoltaic Voltage (36V 48V): 54V Solar Panel for 36V Battery, 72V Solar Panel for 48V Battery (<80V) Maximum Photovoltaic Voltage (60V): 90V Solar Panel for 60V Battery (Voltage <100V) USB Output: 5V 2A Maximum Connection: Bluetooth Rated charging current 30A 40A 50A 60A Rated discharge current 15A 15A 20A 25A . Package List: 1 x MPPT Solar Charge Controller 1 x User Manual