Industrial main control chip, 16 level AD sampling accuracy. Temperature, charging current and discharge current are displayed accurately in real time, and the power generation is clear at a glance.MPPT autofocus technology tracking charging, high charging efficiency, charging detection, two-way focus tracking. Large LCD display with adjustable charging and discharging parameters. The ultra-wide charge and discharge parameters can be adjusted, so long as the characteristics of the battery and its corresponding charging parameters are known, it can be used to charge the battery and turn off the output. Minutes and hours can be adjusted, so it is more convenient. Complete 3-stage charge management to effectively protect the battery and make the battery more durable. Built-in protection against overheat, overcurrent, short circuit and reverse connection. When the fault is eliminated, the controller itself automatically resumes operation without damaging the controller. Specifications: Voltage: 12/24V Current: 30A/40A/50A/60A/80A/100A Dimensions: Approx. 168x95mm /6.61x3.74 inches Attention: 1. Due to manual measurement, please allow 1-2 cm error, please make sure you don't mind before ordering. 2. Due to differences between different monitors, the picture may not reflect the actual color of the item. The package includes: 1x solar charging controller