1. Intelligent charging: This is a MPPT solar controller that can automatically identify the 12V/24V battery voltage, auto-focus MPPT tracking charging, high charging efficiency, effective protection of the battery, suitable for various lead-acid batteries (including open, sealed, gel, etc.). 2. Efficient heat dissipation: The back of the solar controller adopts a multi-diamond edge design to increase the heat dissipation area and easily conduct heat; ABS engineering plastic design, flame retardant shell, durable anti-fall performance. 3. 3-stage intelligent charging mode: boost charging, floating charging and strong charging to better protect the battery; charging control mode: all-day mode, light control mode. Easily control and regulate the charging process of your battery from your solar panels 4. LCD Display Screen: You can clearly and intuitively understand the working status of the controller on the LCD screen. The easy button operation is simple, and the charge and discharge parameters are adjustable; 5. Intelligent Protection Function: Overcharge/short circuit/overload/low voltage/overcurrent/reverse connection protection. The 4-port USB 5V/2.5A output is perfect, suitable for charging mobile phones, tablets and PSP game consoles.