Feature:1. Automatic Identification: 12V/24V system voltages are automatically recognized. An upgraded 3stage PWM charging algorithm is adopter. Application of an equalizing charging to the battery periodically or when over discharged, can effectively prevent the battery from nonequalization and sulfuration.2. Automatic Temperature Compensation: With temperature compensation employed, charging parameters can be automatically adjusted. A wide range of load working modes facilitate the product's application to different types of load.3. Multiple Protection: The PWM solar charge controller provides overcharge, overdischarge, overload protectiong, as well as shortcircuit protection, thus extending the battery's service life. Compatible with colloidal battery, sealed battery, open battery, lithium battery.4. Easy to Operate: By virtue of an advanced load startiong method, largecapacitance loads can be started smoothly. The product provides a dot matrix graphic LCD screen and a humanmachine interface with a key. The userfriendly design of browser and dynamic interfaces ensure convenient and intuitive operations.5. Wide Application: Boastiong an industrial grade desing, the solar charge controller can function well in various tough conditions. TVS lightiong protection is adopted. Suitble for solar photovoltaic systems such as home power generation, base stations, RVs, yachts, ships, etc.Specification:Item Type: Solar ControllerColour: BlackMaterial: ABSCharging Type: PWMUSB: 5V/1A (1)Rated Current: 30ARated Power: 12V/450W; 24V/900WSystem Voltage: DC 12V/24V automatic identificationNo-load Loss: <13mAh/12V; <15mAh/24VSolar Input Voltage: <55VMaximum Allowable Voltage At Battery Terminal: <34VOvervoltage Protection: 17.0V; x2/24VEqualization Charging Voltage: 14.8V; x2/24VBoost Charging Voltage: 14.6V; x2/24VFloating Voltage: 13.8V; x2/24VCharging Return Voltage: 13.2V; x2/24VOver-discharge Return Voltage: 12.6V; x2/24VOver Discharge Voltage: 11.1V; x2/24VEqualizing Charge Interval: 30 daysEqualization Charging Time: 1HImprove Charging Time: 2HTemperature Compensation: -3.0mV//2VLight Control Voltage: Light control on 5V; light control off 6V set value plus 1V (x2/24V)Light Control Judgment Time: 1 minuteWorking Temperature: -25+55Protection Level: IP30Applicable Scenarios: Solar photovoltaic systems such as home power generation, base stations, RVs, yachts, ships, etc..Package List:1 x Controller1 x Manual