1. Built-in synchronous switch step-down converter chip; 2. Input voltage range: 4.5V to 32V (The input voltage must be higher than the output voltage because it is a voltage drop module); 3. Output voltage range: 3V to 12V, automatically adjusted according to the fast charge protocol; 4. Output power: 24W (4V3.6A, 5V3.4A, 9V2.5A, 12V2A, etc.); 5. Wired output voltage compensation; 6. The output has CV/CC characteristics (output current is less than the set value, output CV mode; output current is the set value, output CC mode); 7. The conversion efficiency reaches 97%; 8. Soft start function; 9. 220Khz switching frequency. Output fast charge: 1. Support BC1.2, , agreement; 2. Support Qualcomm QC2.0 and QC3.0; 3. Support MTK PE1.1/PE2.0; 4. Support fast charge protocol ; 5. Support Quick Charge Agreement ; 6. Support Spreadtrum fast charge protocol SFCP. Multiple protection, high reliability: 1. Output overcurrent, input overvoltage, input undervoltage, output short circuit protection; 2. The over-temperature protection of the whole machine. Colour:black Material:plastic+metal Package Contents: 1 x Fast Charger 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.