Specifications: - Current: 40A, 50A, 60A, 80A - Controller Size: Approx. 190x130x60mm/7.48x5.12x2.36" - Installation Size: Approx. 178x97mm/7.01x3.82" - Battery Float Voltage: 13.8V(12V system)/27.6V(24V system) - Battery Protection: 10.6V(12V system)/21.2V(24V system) - Battery Recovery: 12.6V(12V system)/25.2V(24V system) - Charge Mode: MPPT+PWM MODE - Working Temperature: -10℃ ~ 60℃ - Storage Temperature: -30℃ ~ 70℃ - Humidity Requirements: ≤90%, No condensation - Temperature Compensation: -4mV/Cell/℃ - Solar Panels Voltage: ≤48V - System Load Loss: ≤13mA - Loop Buck: ≤100mV Features: - LCD screen display - Easy operation interface - PWM charging mode - Parameter user can reset - A key to open and close the load - A key to restore the factory settings - Battery reverse discharge protection - Battery reverse polarity protection - Battery under voltage protection - Overload protection - Short-circuit protection - Automatic temperature compensation function - USB 5V charging (for 500mA) for mobile phone Package Included: - 1 x Solar Controller - 1 x Temp Sensor  - 1 x English User Manual