Feature: 1. Main Function: This controller can detect real time voltage generated by solar panels and track the highest voltage and current values (VI) to charge the battery at maximum power output, even under cloudy conditions. 2. Battery and Cooling: This solar controller can automatically detect the 24VDC system voltage of all battery types, and is equipped with high power cooling fan to keep the controller at normal operating temperature. 3. LCD Display: The solar charge controller has LCD screen that displays the PV and battery status, with load terminal for DC power connection, which can monitor the working status of the load and set the load timing mode. 4. Charging Stages: With batch charging, accelerated charging, floating charging, and balanced charging stages, the system intelligently selects the charging stage based on battery type and status, with lithium battery activation function. 5. Good Protection: This solar controller has PV array short circuit, PV overvoltage, PV overcurrent, load overload, load short circuit, temperature, battery overvoltage over discharge, and reverse polarity protection. Specification: Item Type: MPPT Solar Charge Controller AC Input Voltage: 230VAC Selectable Voltage Range: 170-280VAC(For PC Computers); 90-280VAC(For Home Appliances) Frequency Range: 50/60Hz (Auto Sensing) AC Output AC Voltage Requirement: 230VAC??5% Solar Charger Type: MPPT Maximum PV Array Power: 1200W MPPT Range Operating Voltage: 30-150VDC WiFi Module Compatibility: Yes Battery Compatibility: Acid, Gel, Lithium, etc.. Package List: 1 x Controller 2 x Terminals 1 x User Manual