This fast charging module has voltage, current, power, display, powerful functions, Digital display of voltage, current and power, with separate fast charging indicator light, Using high-quality solid capacitors, double-wire large inductance, 3 screw positioning holes,The digital display shows voltage by default, and can be switched to current and power display by pressing the button.Output overcurrent, input overvoltage, input undervoltage, output short circuit protection Interface: Type-c+USB dual interface. Input voltage range: 6-35v, recommended within 33V. Output voltage range: 4V-20v, automatically adjusted according to the fast charging protocol. Support QC4+/QC4/QC3.0/QC2.0/FCP/AFC/SFCP/MTK/SCP/BC1.2/DCP. Output overcurrent, input overvoltage, input undervoltage, output short circuit protection. With digital display, the voltage, current and power can be switched by pressing the button soft start function. Output voltage line compensation function, line compensation voltage 50mV@1A. High current USB interface. 3 positioning holes of 3mm. Board size: 36x38x11.3MM. Instructions:The input voltage of DC interface or welding wire interface is 6-35V. It is recommended to be in the range of 12V-32V. The module is by step-down. If you want to output 12V voltage, the input must be 12V, and the power supply must be sufficient. Use a high-current mobile phone charging cable to charge the mobile phone (the quality of the data cable affect the charging speed). The power indicator light be on when the welding wire is energized. The digital display shows voltage by default, and can be switched to current and power display by pressing the button. The first digit of the current mode displays "C", and the first digit of the power mode displays "P". Protocol introduction:; Support /PD3.0/PD2.0; Support QC4+/QC4/QC3.0/QC2.0; Support AFC/FCP; Support fast charging protocol AFC; Support MTK PE+1.1 and MTK PE+2.0; Support low-pressure SCP/high-pressure SCP/SFCP; Support BC1.2 DCP mode Precautions for use: The power supply voltage of the module is higher than the output voltage, because the module is a buck type. The power supply should be 10% of the load power, that is to say, in addition to ensuring the supply voltage, the supply current must be sufficient. Place the module in a well-ventilated and fan-heated place, and do not use hot melt adhesive or wrap materials with poor thermal conductivity. The module parameter refers to the power supply capacity of the module, and the actual charging power is determined according to the actual usage of the mobile phone. When encountering usage problems, please operate in full accordance with the technical requirements. The technology is professional, which can be guaranteed. If we on our own opinions, we not be to provide technical support. We must on this. We not provide any support if you do not agree. (Use the following as needed:) Must-see before buying: At present, some mobile phones do not support super fast charging except for the charging head. They only support ordinary fast charging of about 20W. (For For don't need to consider this issue, just buy it directly, all support) If you charge your phone, 12V 2A power supply is enough. Color: As Shown Material: PCB Package Contents: 1 * Mobile Phone Fast Charging Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.