Features: 1. LCD screen display all parameters. 2. With output switch, intelligent control, easy to operate. A key to open and close the load. Fully automatic operation. 3. With separated temperature detected circuit, high accuracy temperature compensation function. 4. Microcontroller digital accuracy. PWM charging mode(SOC). D C 12V and USB 5V charging for D C lamp and phone. 5. Protection: Overload protection; Short-circuit protection; Lighting protection; Under-voltage protection; Over-charging protection; Reverse polarity protection. Specifications: Color: Black Material: Plastic Voltage of Battery: 12V / 24V Automatic Rated Charge/Discharge Current: 10A / 20A (Optional) USB Output Voltage: 5V Total USB Output Current: 3A D C Output Voltage: 12V Total D C Output Current: 2A Overload/Short Circuit Protection: 1.5 Times by Rated Current Short Circuit Recovery Time: 10s Open Circuit Voltage of Solar Panel: 40V No Load Loss: 0.05W Over Voltage Protection: 15V; x2/24V Float Charge Voltage: 14V; x2/24V Discharge Recovery Voltage: 12V; x2/24V Over Discharge Voltage: 10.5V; x2/24V Control Mode: Software Intelligent Control Working Temperature: -35~55°C Item Size: 135 x 100 x 25mm / 5.31 x 3.94 x 0.98in (L x W x H) Item Weight: 222g / 7.83oz Package Size: 14.5 x 12 x 3.8cm / 5.7 x 4.72 x 1.5in (L x W x H) Package Weight: 270g / 9.54oz Package Included: 1 x Solar Charge Controller 2 x D C Cable 1 x User Manual (English)