Features: 1.PWM Charging: 12V/24V system voltage automatic identification, 3 stage PWM charging algorithm, periodic or over discharge balanced charging of the battery, effectively prevent battery imbalance and vulcanization, and prolong battery life. 2.Temperature Compensation: The Solar controller adopts temperature compensation, and the charging parameters can be adjusted automatically. A variety of load working modes are convenient for the product to be suitable for different types of loads. 3.Load Startup Mode: The Solar controller adopts an advanced load startup method, and large capacity loads can also be started smoothly. User friendly browser and dynamic interface design to ensure convenience and speed, using TVS light protection. 4.LCD Display: The solar controller is equipped with an LCD display, which can clearly display the status and data, easily switch modes and parameter configuration, and has a large screen LCD display with backlight, which can adjust the charging and discharging parameters, and has a power off memory function. 5.Multiple Protections: The controller can connect two solar panels, which is more efficient than other controllers, and provides overcharge, overdischarge, overload protection, and short circuit protection. Specification: Item Type: 12V/24V PWM Solar Controller Material: ABS Charging Type: PWM Working Voltage: 12V/24V Automatic Identification Maximum Charge and Discharge Current: 20A USB Output Voltage: 5V/2A Standby Consumption: 12mA Operating Temperature: -20 to +55 Terminal Wire Gauge: 28AWG to 10AWG Waterproof Grade: IP32 Size: Approx. 13 x 9cm / 5.1 x 3.5in Applicable Scenarios: Solar Photovoltaic Systems Such As Home Power Generation, Base Stations, RVs, Yachts, Ships, Etc.