Input voltage range: 6V to 32V, apply heatsinking or at least accommodate decent heat dissipation above 24V
Output voltage: The default is 5V, after the QC signal is received it is apropriately adjusted to the fast-charge voltge.
Output Power. Up to 24W, highly dependent on the current capacity of the device and to a lesser extent the quality of the charge cable.
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
 
Support fast charging protocol
for BC1.2, iPhone, Samsung agreement
for Qualcomm QC2.O and QC3.O
MTKPEI.1/PE2.O
Fast Charge Protocol FCP
Star Fast Charge Protocol AFC
Spreadtrum Fast Charge Agreement SFCP

Default postage is fixed at $2.40, additional quantities are combined for free, contact me for an invoice to combine shipping across other products as well, for free.