Automatic voltage identification: built-in automatic identification system senses system voltage and switches between 12 V and 24 V without manual wiring changes. Benefit: avoids wiring errors and saves installation time. Smart MPPT 3-stage charging: high-efficiency, intelligent MPPT 3-stage charge algorithm optimizes solar input and battery charging. Benefit: faster, safer charging and better energy harvest from panels compared with simple PWM controllers. Clear human-machine interface: humanized LCD display plus dual-button control gives direct access to status, settings and realtime values. Benefit: easy monitoring and simple navigation for installers and end users. Full technical data for configuration: all technical parameters and programmable settings are available for setup and adjustment. Benefit: enables tailored charging profiles and precise system tuning for different battery and load requirements. Compatibility and function: designed for use with 12 V and 24 V PV systems and corresponding battery banks. Functionality covers automatic voltage detection, MPPT charging, status display and parameter configuration. Performance and reliability: intelligent control logic improves battery lifetime through controlled multi-stage charging; MPPT tracking increases energy capture under varying irradiance. Benefit: more predictable battery condition and higher usable energy from the same panel array. User-focused operation: LCD shows operational states and numeric values; two-button layout minimizes complexity while allowing full access to settings. Benefit: quick commissioning and on-site adjustments without specialized tools. Use scenarios 1) Remote cabin or off-grid home: automatic 12/24 V detection and MPPT charging simplify setup for small solar systems, improving daily energy capture and extending battery life for lights, pumps and appliances. 2) Mobile applications (RV, camper, boat): compact operation with automatic voltage switching and easy-to-read LCD makes installation and monitoring straightforward when converting or upgrading 12 V and 24 V systems. 3) Small commercial or telecom shelters: reliable MPPT charging and full programmable parameters let technicians optimize battery management for continuous standby power or seasonal solar availability. What this product solves Eliminates manual voltage configuration errors with automatic 12/24 V detection. Maximizes energy harvest and charging efficiency through MPPT 3-stage charging. Simplifies setup and troubleshooting with clear LCD feedback and accessible settings. Provides the technical data needed to match charging behavior to system and battery requirements. Key attributes at a glance Function: automatic voltage identification, MPPT-3-stage charging, status display, parameter configuration. Compatibility: 12 V and 24 V photovoltaic systems and matching battery banks. Interface: humanized LCD display and two-button HMI for monitoring and configuration. Performance: intelligent MPPT tracking and controlled multi-stage charging for improved energy use and battery care. Notes for installers and users Confirm system nominal voltage (12 V or 24 V) before connecting batteries; the controller will identify and operate accordingly. Use the LCD and dual-button controls to review system status and adapt charging parameters to your battery type and operational needs. Refer to the full technical data provided with the unit for detailed parameter ranges and configuration steps.