Features: Easy to use and convenient to operate. USB Port Power Converter, convert power from USB port to 12V car cigarette lighter socket. Easy to power on your car electronic equipments by extra power(such like a power bank). Easy to enable Parking Monitoring feature of your Car Driving recorder. Fit for Driving recorder, electronic dog, car charger and other automotive electronic equipment. Specification: Material: PVC Color: Black USB Input: 5V, 2A Cigarette Lighter Output: 12V, 8W Fitments: For Driving recorder, electronic dog, car charger and other automotive electronic equipment Frequently Questions & Answers Q: Why this USB step cable can't work for my 12v device? Is it faulty? Is it broken&Defective goods? A: NO,if there are something wrong, please check as follow: 1. Please make sure your device needs 12v to work ,and it use for items below 8w. 2. Please make sure the USB power source is enough 2000mhA with full power and have 5v output. 3. Please don't ignore the max current is 1000mhA. It means your device should be under 1000mhA. 4. Please test this cable with different device, in fact, it can always give you a big surprise. Package included: 1 x USB Port to 12V Car Cigarette Lighter Socket Converter"