Condition: Type:Voltage Regulator Model Number:USB module Advantage1: 100% High quality Advantage2: Low Input voltage range: 6V-32V Output voltage: default 5V, automatically adjust between 3-12V after triggering fast charge Output power: maximum 24W (5V /3.4A, 9V /2.5A, 12V /2A, etc.) Output voltage cable compensation function Conversion efficiency: 90%-97% Input overvoltage, undervoltage protection Input overcurrent protection Output overcurrent, short circuit protection Machine over temperature protection Support fast charge agreement BC1.2, For , agreement QC2.0 and 3.0 MTK PE1.1/PE2.0 For Fast Charge Protocol FCP, does not support mate9 (SCP) Spreadtrum Fast Charge Protocol SFCP Applications Solar panel to mobile phone charging Car charging retrofit Driving recorder power supply Household power supply transformation Product Size:37*20*10mm weight 7.5g/Pcs colour:Color as shown Material:plastic Package Contents: 3 * USB DC Step-down 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.