Feature:1. MULTIPLE FUNCTIONS: Uses LCD screen to display charging and discharging current and temperature, supports cumulative power generation and discharge power query, light control delay control.2. DUAL USB OUTPUT: The controller has dual USB outputs, can charge phones and tablets, and can adjust charging and discharging parameters, with power failure memory function.3. CIRCUIT PROTECTION: Built in overheat, overcurrent, short circuit, open circuit protection, supports troubleshooting, automatic controller recovery, safe and reliable operation.4. MOS TUBE CIRCUIT: The controller uses 2 way MOS tube anti backflow circuit, high power charging, with reverse current protection, low heat value, and will not damage the controller.5. HIGH EFFICIENCY: Current auto focus MPPT tracking charging, high charging efficiency, and the charging process does not stop detection, bidirectional focus tracking.Specification:Item Type: Solar Panel ControllerMaterial: Aluminum Alloy70A Maximum PV Input Power: 900W (12V), 1800W (24V)80A Maximum PV Input Power: 1560W (12V), 3120W (24V)90A Maximum PV Input Power: 1680W (12V), 3360W (24V)100A Maximum PV Input Power: 1800W (12V), 3600W (24V)Display: LCD ScreenStandby Current: <10mADual USB Output: 5V 2A Maximum (charging mobile phones, tablets, etc.)Working Temperature: -35-60.Package List:1 x Solar Panel Controller