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 Photosensitive: No output during the day, load output at night, suitable for street lamps Efficiency: 95% Noise: 1.The MPPT controller should be fixed on an iron or metal bracket to avoid the vibration of the machine due to instability.2.The MPPT controller should allow some space around the enclosure.3.Output and input wires should be kept as short as possible to avoid excessive energy dissipation during transmission.4.There is high voltage and high current in the machine, and nonprofessionals are not allowed to disassemble.5.The input and output terminals should be reliable and not loose, so as to avoid heating at the connection point. 1300W 20A: The MPPT photovoltaic controller uses solar maximum power point tracking (MPPT) technology. 300W output power, 20A load discharge current. 2High Efficiency: The photovoltaic solar controller adopts a high efficiency synchronous rectification circuit structure. Performance upgrade, efficiency improvement. 3Multiple Protections: Short circuit protection, over temperature protection, solar input undervoltage protection, battery undervoltage protection, load port short circuit protection. 4Applications: Photosensitive solar controller, no output during the day, load output at night, suitable for street lights. Energy saving and environmental protection. 5Installation Attention: The output and input lines can be connected and installed according to the applicable voltage. There is high voltage and high current in the machine, and non professionals are not allowed to disassemble.