About the producct
1. Brand new and high quality
2. Connects to solar panel to charge battery
3. Identify voltage level automatically
4. Adjustable charge / discharge parameters
5. Low voltage / overheat / overload / short-circuit / reverse polarity protection
6. Settable operatings modes of load
7. Dual USB output
8. Suitable for 12/24V lamps
9. LED display for better viewing
10. Connect battery first then solar panel or loads

Specifications
1. Max charge current: 20A
2. Max discharge current: 20A
3. Max solar panel input voltage: less or equal to 50V
4. Rate voltage: 12/24V auto work
5. Stop charging voltage: 14.7/29.4V
6. Low voltage recovery: 12.2/24.4V
7. Low voltage protection: 10.5/21V
8. USB output: 5V 2A
9. Operating temperature: -20 to 60 Celsius degree