Specifications:

Dual USB Car Adapter with One Cigarette Lighter Socket
Input: DC12-24V                         
Output: One12/24V socket
5V/2.0A, 3.1A  or 4.8A  (total) with 2 USB ports
smart IC optional
LED indicator
Fused protection
Maximum output current 8A
with CE & ROHS
Packing:

double blister
carton size:43x36x46cm/6pcs/inner box/72pcs/ctn