Feature: 1. PWM Mode: The use of PWM type battery charging mode and unique control technology of the controller will greatly improve battery life. 2. Self Protection: The controller is suitable for solar off grid systems, which can automatically control the charging and discharging process, and its comprehensive self checking function and electronic protection function can avoid the damage of the controller caused by installation errors and system failures. 3. Advanced Technology: This series of controllers adopts the most advanced numerical control technology design, LCD display, automatic operation. 4. Excellent Configuration: 12V, 24V system voltage automatic identification or 48V battery working voltage, efficient series PWM charging mode prolongs battery life and improves system performance. 5. ABS Material: Made from premium ABS material, not likely to deform and also has excellent durability for long working hours. Specification: Item Type: Solar Charge Controller Material: ABS Application: Solar Control Basic Parameters: The Highest Photovoltaic Voltage: 50V. Package List: 1 x Solar Charge Controller 1 x Manual