Features 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. Specifications Item Type: MPPT Solar Controller Material: Plastic Gross Weight: 306g / 10.8oz Product size: 74x74x32mm / 2.9x2.9x1.3in Load Discharge Current: 20A Output Power: 300W Normally Open: 24 Hours Load Output Efficiency: ≥95% Noise: <55dB 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 No Load Loss: 30MA Voltage Regulation Rate: 1% Load Regulation: 5% Full Load Ripple: 400mV No Load Ripple: 100mV Discharge Module Input Voltage: Equal to battery voltage Load Output Voltage: Equal to battery voltage Load Output Current: 30A (Max 32A) Static Power Consumption: 12mA Load Output Mode: Photosensitive Battery Terminal Short Circuit Protection: Yes Load Short Circuit Protection Yes Temperature Protection: Yes Protection Class: IP67 Working Temperature: -40℃-+65℃18:23 Package List 1 x Controller