Features: The controller is available in a variety of battery types to provide precise control of different batteries while also supporting lithium batteries. With parameter adjustable function, the controller can adjust the battery charging and discharging voltage parameters (stop charging voltage, floating charging voltage, over-discharge recovery voltage, over-discharge protection voltage) within a certain range. The light control sensitivity of the controller is adjustable. The controller has its own anti-backflow function inside, and no external diode is required. The controller can rely on the power of the solar panel to charge the depleted battery to restore power. After the controller is powered down and the output is turned off, the controller automatically resumes output if the battery voltage rises and resumes. Specifications: Condition: 100% Brand New Material: ABS Maximum charging current: 10A Maximum load current: 10A Maximum USB5V current: 1.8A Solar panel maximum voltage: ≤50V Battery voltage: 12V/24V automatic identification Stop charging voltage default: 14.4/28.8V (8.5V-35V can be set) Floating charge voltage default: 12.4/24.8V (8.5V-35V can be set) Undervoltage protection voltage default: 10.8/21.6V (8.5V-35V can be set) No-load loss: 6mA-25mA (during digital display) Load short circuit and overload: greater than 1.1 times rated current for 5 seconds or short circuit, LOAD indicator flashing protection, automatic retry recovery after 30 seconds | Charging circuit voltage drop: ≤0.26V Temperature compensation: (0-5mv)/2V/C Humidity requirement: ≤90%, no condensation Discharge loop voltage drop: ≤0.17V Working temperature: -35°C +60 °C Protection level: IP30 Mounting hole spacing: 134 x 55mm Storage temperature: -40 °C+75 °C Installation line specification: ≤8mm2 Weight: approx. 231.5g / 8.2oz Size: approx. 14.3*7.6*4cm / 5.6*3.0*1.6in Package list: 1 * Solar Controller 1 * Instruction Manual Note: 1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1、The controller is available in a variety of battery types to provide precise control of different batteries while also supporting lithium batteries 2、With parameter adjustable function, the controller can adjust the battery charging and discharging voltage parameters (stop charging voltage, floating charging voltage, over-discharge recovery voltage, over-discharge protection voltage) within a certain 3、The light control sensitivity of the controller is adjustable 4、The controller has its own anti-backflow function inside, and no external diode is required 5、The controller can rely on the power of the solar panel to charge the depleted battery to restore power