Specifications:

Dual USB Car Charger
Input: DC 12/24V through car cigarette plug
Output:5V/2.1A,3.1A or 4.8Awith smart IC or 4.8A with smart IC and QC2.0(total)
Smart IC can identify all the charging devices and adjust output to the most optimized charge 
Fused protection
Dual USB smart ports 
with CE & ROHS
Packing:

double blister
carton size:37.6x34.5x39.1cm/6pcs/inner box/72pcs/ctn