process of the controller is optimized, which can prolong the battery life and improve the system performance. Its self-test function and electronic protection function can avoid controller damage due to installation errors and system failures. Specifications: Model: Pstar-30A / Pstar-60A / Pstar-80A (Optional) Pstar-30A Rated Charging Current: 30A Rated Output Current: 20A Max. Input Power for 12V System: 360W Max. Input Power for 24V System: 720W Max. Input Power for 36V System: 1080W Max. Input Power for 48V System: 1440W Item Size: 187 * 94 * 49mm / 7.36 * 3.70 * 1.93in Pstar-60A Rated Charging Current: 60A Rated Output Current: 35A Max. Input Power for 12V System: 720W Max. Input Power for 24V System: 1440W Max. Input Power for 36V System: 2160W Max. Input Power for 48V System: 2880W Item Size: 187 * 132 * 60mm / 7.36 * 5.20 * 2.36in Pstar-80A Rated Charging Current: 80A Rated Output Current: 50A Max. Input Power for 12V System: 960W Max. Input Power for 24V System: 1920W Max. Input Power for 36V System: 2880W Max. Input Power for 48V System: 3840W Item Size: 187 * 132 * 60mm / 7.36 * 5.20 * 2.36in PV INPUT: Max. Open Voltage of PV Module: 100V PV Operation Voltage Range: >System voltage and 100V CHARGING MODE: Charging Technology: PWM Charge Algorithm: 3-stages Sel-consumption: 20mA Nominal System Voltage: 12V/24V/36V/48V (Auto detection) USB Interface: 5V/2A*2 Material: Metal Protection Class: IP30 Operating Environment: -20~55, 90%(non-condensing) Item Weight: 607g / 21.42oz Package Weight: 714g / 25.19oz Package Size: 21 * 14.5 * 7.5cm / 8.27 * 5.71 * 2.95in Package List: 1 * Controller 1 * Manual (English)