Specification:Input voltage range: 6V-32VOutput voltage: default 5V, automatically adjust between 3-12V after triggering fast chargeOutput power: maximum 24W (5V /3.4A, 9V /2.5A, 12V /2A, etc.)Output voltage cable compensation functionConversion efficiency: 90%-97%Input overvoltage, undervoltage protectionInput overcurrent protectionOutput overcurrent, short circuit protectionMachine over temperature protectionSupport fast charge agreementBC1.2, for Apple, Samsung agreementQC2.0 and 3.0MTK PE1.1/PE2.0for Huawei Fast Charge Protocol FCP, does not support mate9 (SCP)Spreadtrum Fast Charge Protocol SFCPSize: 37 * 20 *10 mmApplication:Solar panel to mobile phone chargingCar charging retrofitDriving recorder power supplyHouhold power supply transformationPackage Included:1 * USB DC Step-down Module