Feature: 1. MULTIPLE FUNCTIONS: Adopt LCD screen to display charge discharge current and temperature, support cumulative power generation and discharge power query, light control delay control. 2. DUAL USB OUTPUT: The controller has dual USB output, can charge phones and tablets, and can adjust the charging and discharging parameters, with power off memory function. 3. CIRCUIT PROTECTION: Built in overheating, overcurrent, short circuit, open circuit protection, support troubleshooting, automatic recovery of the controller, safe and reliable operation. 4. MOS TUBE CIRCUIT: The controller adopts 2 way MOS tube anti backflow circuit, high power charging, with reverse current protection, low calorific 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 Controller Material: Aluminum Alloy Voltage: 12V 24V Maximum PV Voltage: 50V 70A 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 Screen Standby Current: <10mA Dual USB Output: 5V 2A Maximum (charging mobile phones, tablets, etc.) Working Temperature: -35-60℃. Package List: 1 x Solar Panel Controller