Feature:1. Special Technology: The MPPT controller uses solar maximum power point tracking (MPPT) technology, reliable and stable performance.2. High Efficiency: 300W 20A MPPT solar charge controller adopts high efficiency synchronous rectifier circuit structure.3. Multi Protection: Short circuit protection, over temperature protection, solar input under voltage protection, battery under voltage protection, load port short circuit protection.4. Scope of Application: Solar street light controllers, solar chargers, solar electric bicycles, solar electric tricycles, solar toy cars, household solar panels, solar monitoring and other usage scenarios.5. Good Performance: Product size is 74x74x32mm / 2.9x2.9x1.3in. 20A load discharge current, 300w output power, normally open is 24 hours load output.Specification:Item Type: MPPT Solar ControllerMaterial: PlasticGross Weight: 306g / 10.8ozProduct size: 74x74x32mm / 2.9x2.9x1.3inLoad Discharge Current: 20AOutput Power: 300WNormally Open: 24 Hours Load OutputEfficiency: ≥95%Noise: <55dBApplication: Solar street light controllers, solar chargers, solar electric bicycles, solar electric tricycles, solar toy cars, household solar panels, solar monitoring and other usage scenariosNo Load Loss: 30MAVoltage Regulation Rate: 1%Load Regulation: 5%Full Load Ripple: 400mVNo Load Ripple: 100mVDischarge Module Input Voltage: Equal to battery voltageLoad Output Voltage: Equal to battery voltageLoad Output Current: 30A (Max 32A)Static Power Consumption: 12mALoad Output Mode: PhotosensitiveBattery Terminal Short Circuit Protection: YesLoad Short Circuit Protection YesTemperature Protection: YesProtection Class: IP67Working Temperature: -40℃-+65℃18:23.Package List:1 x ControllerNote:The MPPT controller should be fixed on an iron or metal bracket to avoid the vibration of the machine due to instability.The MPPT controller should allow some space around the enclosure.Output and input wires should be kept as short as possible to avoid excessive energy dissipation during transmission.There is high voltage and high current in the machine, and non‑professionals are not allowed to disassemble.The input and output terminals should be reliable and not loose, so as to avoid heating at the connection point.