Feature: 1. Multiple protections: With built in multiple protections functions, it is safer and more reassuring to use. After troubleshooting, they are all-self recovery types and will not damage the controller. 2. Industrial grade main control chip: Adopting industrial grade main control chip, with 16 levels of AD sampling accuracy, accurate real time display of temperature and recharging current, and clear powergeneration. 3. Automatic focusing MPPTtracking recharging: High recharging efficiency, uninterrupted detection during recharging process, bidirectional focusingtracking. 4. Large LCD display screen: adjustable recharging and discharging parameters. Wide recharging and discharging adjustable, as long as you understand the battery characteristics and set corresponding recharging parameters, you can recharge the battery. 5. Dual Direct Current load: Dual Direct Current 5.0 load output, easy to connect. Specification: Specifications: Material: PVC USB output voltage: 5V/2A Working temperature: -35℃ to 60℃ Voltage: 12Volt/24Volt Automatic Identification Item size: 170 * 95 * 40mm / 6.7 * 3.7 * 1.6in . Package List: 1 * Solar Controller