Features: Advanced MPPT technology, the efficiency is higher than 99.5%. Ultra-fast tracking speed and guaranteed tracking efficiency. Advanced MPPT control algorithm to minimize the maximum power point loss rate and loss time. Accurately identify and track multi-top maximum power points. Charging power and current limit function. Specification: Item Type:Solar Charge Controller Model: 3210AN+MT50 Rated Voltage: 12/24VDC (Automatic Identification) Operating Voltage Range: 8-32V Rated Charging Current: 30A Rated Discharge Current: 30A Maximum PV Input Power: 390W / 12V, 780W / 24V Static Loss: ≤12mA Discharge Circuit Voltage Drop: ≤0.23V Temperature Compensation Coefficient: -3mA/°C/2V Grounding Type: Negative Ground Working Environment Temperature Range: -25°C~ +50°C (Full Load Operation) Storage Temperature Range: -20 ° C ~ +70 ° C Relative Humidity: ≤95%, No Condensation Material: Aluminum Package List: 1 x Controller 1 x Meter 1 x Cable 4 x Long Screw 4 x Short Screw 4 x Plastic Gasket 4 x Screw Plastic Cover 1 x Connector 1 x Users Manual(English)