Specifications: Input voltage: 12-24V (DC) Output: DC5V/4A 9V/2A 12V/1.5A Output power: 20W PCB size: 50*15MM Instructions for use 1. When using, please insert PDQC3.0QC2.0FCPAFC to cooperate with the device, the module will automatically recognize the output suitable for charging. 2. Mode: PD: 12-24V, 5V/4V, 9V/2A, 12V/1.5A QC3.0/QC2.0: 12-24V, 5V/4V, 9V/2A, 12/1.5A FCP: 12-24V9V/2A AFC: 12-24V9V/2A Note: 1. The input voltage should not be higher than 30V, and the wiring should be correct (red is connected to the positive pole of the power supply and black is connected to the negative pole of the power supply) 2, because there is no outer casing, you can not touch the inductor and IC chip by hand when charging, in case of hot 3. When charging, keep the module clean and the bottom pad is insulated to prevent short circuit. 4. When the module is overcurrent protected, the module will restart continuously. Please disconnect the device and the module will return to normal. When the module is overheated, the module will stop working. When the temperature drops by 30 degrees, the module will resume normal operation.