Model Number: SC-M 30A-#2162 Brand Name: SAKO Key Specifications/Special Features: Main features:1. Automatic identification system voltage,12/24/48V auto recognition2. Built-in maximum power point tracking algorithm, charging efficiency 15-20% higher than PWM types3. With the solar reverse polarity protection4. Industrial-grade micro processor control5. With DC power supply function, can be connected DC energy-saving lampsHave timer and dimmer functions6. Reliable over charge protection, once it is under over-current protection the controller will automatic reduce the charge current7. Accurate temperature compensation, correcting the charging and discharging voltage automatically, improving the battery lifetime8. With LCD display, which can show the charge current and working status