Item Type: Solar Charge Controller Product Material: ABS, Aluminum Alloy System Voltage: 12V, 24V automatic identification Package List 1 x Solar Controller 1 x Manual 2 x Mountaineering Buckle When installing for the first time, ensure that the battery has sufficient voltage so that the controller can recognize the correct battery type. 1MPPT TRACKING CHARGING: The controller can automatically focus on MPPT tracking charging, with premium charging efficiency, non stop detection during charging, two way focusing and tracking. 2ABS, ALUMINUM ALLOY MATERIAL: Made of premium ABS and aluminum alloy material, the controller is wear resistant and durable, ensures a long life span. 3LCD DISPLAY: The controller is designed with a LCD display that real time display of power generation, temperature, charging and discharging current are at a glance. And charging and discharging parameters are adjustable. 4MULTI PROTECTION: The controller has built in overheat protection, overcurrent protection, short circuit protection, open circuit protection, reverse connection protection. When the fault is eliminated, the controller is automatic recovery type, without damage to the controller. 5WIDE APPLICATION: The controller is widely used for villa, outdoor RV, solar power generation system, yacht, solar billboard, solar street lamp, etc.