Feature: 1. LCD screen for dynamic display of equipment running data and working status. 2. The user interface is simple, humanized button setup, more comfortable and convenient to operate. 3. Compared with ordinary solar charge controller, the MPPT controller can improve efficiency by 10% -30%. 4. Standby energy saving, standby power consumption is only 10ma-15ma. 5. This is a dual-time controller into the dusk (evening) working time ,an interval of rest or pause time, dawn working time (morning light function),the user can according to their needs ,set a different time 6. Support PWM charging mode, parameter users can reset, a key to open and close the load, a key to restore the factory settings. 7. With battery reverse discharge protection, battery polarity protection, battery undervoltage protection, overload, short circuit protection, automatic temperature compensation function. Specification: Condition: 100% Brand New Item Type: Solar Charge Controller Material: PP Color: As shown in the picture Size: Approx.14.1x8.5x3.7cm / 5.6x3.3x1.5in Weight: Approx.232g/8.2oz Rated Operating Current: 20A Installation Line Number: 8mm² Installation Line Number (American standard): 8 (AWG) Rated Working Voltage: 12V/24V Solar Panel Rated Open Circuit Voltage: 18V/36V Battery Float voltage: 13.8V/27.6V Battery Undervoltage Protection: 10.6V/21.2V Battery Undervoltage Recovery Working Voltage: 12.6V/25.2V Solar Panel Maximum Open Circuit Voltage: ≤48V System No-load Loss: ≤13mA Loop Step-down: ≤100mV Working Temperature: -10 ° C ~ 60 ° C Storage Temperature: -30 ° C ~ 70 ° C Humidity Requirement: ≤90%, no condensation Temperature Compensation: -4mV/cell/°C Temperature Probe Material: NTC 100k thermisto . Package List: 1 x Solar Charge Controller1 x Temperature Sensor1 x Instruction Manual Note: 1. Please allow 1-2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.