5V 3.1A black white Dual USB car charger for smart phone

1) input: 12V-24VDC
2) output: 5V-3.1A
3) connector: USB 4Pin
4) color: black ,white
6) indicator light:no
7) applicable models: PDA mobile phone, GPS, MP3
8) USB standard interface: general performance
9) selection of material: precision electrical components, fire line version, import fire plastic, UV light solid fuel injection.
10) the use of the environment: This product can be used in the environment of -5 to 45;
11) all the materials used in this product are in line with the RoHS standard.