Features 1. Automatic Identification: 12V/24V system voltages are automatically recognized. An upgraded 3-stage PWM charging algorithm is adopted. Application of an equalizing charge to the battery periodically or when over-discharged can effectively prevent the battery from imbalance and sulfation. 2. Automatic Temperature Compensation: With temperature compensation, charging parameters are automatically adjusted. A wide range of load operating modes supports compatibility with various load types. 3. Multiple Protection: The PWM solar charge controller provides overcharge, over-discharge, overload, and short-circuit protection, helping extend battery service life. Compatible with gel, sealed, open, and lithium batteries. 4. Easy to Operate: Featuring an advanced load starting method, large-capacity loads can be started smoothly. Includes a dot matrix graphic LCD screen and a keypad-based human-machine interface. Browser-style navigation and dynamic display interfaces ensure convenient and intuitive operation. 5. Wide Application: Designed for industrial use, the solar charge controller performs reliably under harsh conditions. Equipped with TVS lightning protection. Suitable for solar photovoltaic systems in residential power generation, communication base stations, RVs, yachts, and marine vessels. Specification Item Type: Solar Controller Color: Black Material: ABS Charging Type: PWM USB Output: 5V/1A (1 port) Rated Current: 30A Rated Power: 12V/450W; 24V/900W System Voltage: DC 12V/24V automatic recognition No-load Loss: <13mAh/12V; <15mAh/24V Solar Input Voltage: <55V Maximum Allowable Voltage at Battery Terminal: <34V Overvoltage Protection: 17.0V; x2/24V Equalization Charging Voltage: 14.8V; x2/24V Boost Charging Voltage: 14.6V; x2/24V Float Voltage: 13.8V; x2/24V Charging Return Voltage: 13.2V; x2/24V Over-discharge Return Voltage: 12.6V; x2/24V Over Discharge Voltage: 11.1V; x2/24V Equalizing Charge Interval: 30 days Equalization Charging Time: 1 hour Boost Charging Time: 2 hours Temperature Compensation: -3.0mV/°C/2V Light Control Voltage: On at 5V; Off at 6V set value plus 1V (x2/24V) Light Control Judgment Time: 1 minute Working Temperature: -25°C to +55°C Protection Level: IP30 Applicable Scenarios: Solar photovoltaic systems such as home power generation, base stations, RVs, yachts, ships, etc. Package List 1 x Controller 1 x Manual