Check the listing for details. 2PACK 100A 12V/24V/36V/48V MPPT Solar Charge Controller PV Charger Controller. Color: Black, Condition: New. Listed at 58.98 USD. Features: 1. Superior MPPT Technology: This 100A MPPT solar controller is equipped with an advanced MPPT maximum power point tracking technology algorithm. It automatically recognizes 12V/24V/36V/48V systems and features dual USB 5V charging ports. The controller can swiftly track the maximum power point of the PV array in any environment, ensuring a tracking efficiency of no less than 99.5%. This significantly enhances the energy utilization in the solar system. 2. LCD Backlight: The controller features a multi-function LCD with a backlight display and clock. The upgraded version now supports precise time control, allowing devices to be automatically powered on and off according to the user’s set time.