QC 3.0 5V 9V 12V USB Fast Charger DC-DC Buck Converter Module 6-32V Input voltage range: 6V to 32V Output voltage: The default is 5V. After the fast charge is triggered, it is automatically adjusted between 3 and 12V. Output Power. 24W (5V, 3.4A, 9V, 2.5A, 12V, 2A, etc.) Output voltage wired compensation Conversion efficiency: 90% to 97% Supports multiple fast charging protocols Input overvoltage, undervoltage protection Input over-current protection Output overcurrent and short circuit protection Over temperature protection