Solar Charge Controller: Industrial-grade main chip. 16 AD sampling accuracy. Temperature. Charging current. Accurate real-time display of discharge current. Solar panel voltage includes 12V, 18V, 24V, and 36V solar panels. Discharge recovery: 12.6V (default, adjustable). Tracking function: Autofocus MPPT tracking charging. High charging efficiency. Non-stop detection during charging. Bidirectional tracking. It has been rigorously quality tested before shipment to ensure a perfect product. If you are not satisfied, we accept all requests for return, replacement, or refund. Additional protection features: Built-in short-circuit protection. Open-circuit protection. Polarity protection. Overload protection. Three-stage charging management. Effectively protects the battery. One controller and one user manual are included in the package. With a large LCD screen: The solar panel controller has a large LCD screen. All parameters are adjustable. Features a bidirectional foam tube circuit against backflow, high-power charging mode, and ultra-low heating. Specification: Condition: 100% Brand New Material: ABS Color: As shown in the picture Options: 50A Battery voltage: 12V 24V Automatic solar panel voltage: 12V, 18V, 24V, 36V Float charge: 13.7V (default, adjustable) Discharge stop: 10.7V (default, adjustable) Discharge reconnect: 12.6V (default, adjustable) Self-consumption: <10mA USB output: Maximum 5V/2A Package list: 1 x Controller 1 x User Manual Note: This product is a simplified version of MPPT.