High Performance: Utilizes an industrial-grade main control chip and high-quality components for enhanced system performance, achieving up to 98% conversion efficiency. Features ultra-fast tracking speed to ensure tracking efficiency. Automatic 12V/24V system identification, compatible with both systems. LCD Display: Large LCD display for clear viewing of charging and discharging parameters. Adjustable parameters for charging and discharging. Power-off memory function retains settings and data. Easy switching between modes and parameter configurations. Suitable for home, industrial, and commercial use. Multiple Protection Functions: Complete 3-stage charge management enhances system efficiency and extends battery life. Built-in multiple protection features: overcurrent, short circuit, open circuit, and reverse connection protection, all self-repairing without damaging the controller. Input and Output: Dual USB outputs with a maximum current of 25A, supporting mobile phone charging. Features dual MOS anti-backflow circuits with ultra-low heat. Note: The controller will heat up during operation; ensure it's installed in a flat, well-ventilated area. Easy to Install and Use: Connect to the battery first, then the solar panel, and finally the load. Disassembly sequence is the reverse of the wiring sequence. Item Type: Solar Charge Controller Material: Plastic Shell + Iron Back Plate Product Color: Black Total Length: Approx. 13.3 cm / 5.2 inches Total Width: Approx. 7 cm / 2.8 inches Total Depth: Approx. 3.2 cm / 1.3 inches Display Length: Approx. 12.6 cm / 5.0 inches Display Width: Approx. 5 cm / 2.0 inches Product Weight: Approx. 157 g / 5.5 oz Display Mode: LCD Screen Voltage: 12V / 24V Automatic Identification Applicable Solar Panels: 12V for 18V panels, 24V for 36V panels Max Photovoltaic Voltage: 12V battery up to 23V; 24V battery up to 46V (up to 50V no load) Full Charge Voltage: 14.4 / 28.8V Discharge Cut-off Voltage: 10.7 / 21.4V Discharge Recovery Voltage: 12.6 / 25.2V Charge Recovery Voltage: 13.2V / 26.4V Light-controlled ON Threshold: Solar Panel 8V (with light-on delay) Light-controlled OFF Threshold: Solar Panel 8V (with light-on delay) Standby Current: <10MA USB Output: Dual USB Output, 5V / 2.5A (MAX) Working Temperature: -35℃ to 60℃ Package Contents: 1 x Controller 1 x Manual