usb car charger: 1. Parameter: Input: 12-24V DC Output:550-1000mah2. Materials: High quality for the PCB Board; PC Material3. Protections: Short circuit protection and over voltage protection4. Packaging: Package as customer request, normal is Polly bag packing for free5. Others:Charger can be printed with customer logo The wire have different diameter as customer requirement; can make fit blister packing Competitive pricesHigh charging efficiency & One year warranty