Features: Easy to use and convenient to use. USB port power converter, converts power from USB port to 12V cigarette lighter socket. Easy to turn on the electronic devices of your car by additional power (e.g. a power bank). Easy to activate parking monitoring function of your car recorder. Fit for driving recorders, electronic dogs, car chargers and other car electronics. Specifications: Material: PVC Colour: black USB input: 5V, 2A cigarette lighter. Power: 12V, 8W Equipment: for driving recorders, electronic dogs, car chargers and other electronic motor vehicle equipment Frequently asked questions and answers Q:Why this USB step cable doesn’t work on my 12V device? Is it faulty? Is it broken and broken goods? A:NO, if something is not right, please check the following: 1. Please make sure your device needs 12V to work and use it for items under 8W. Output: 12V 8W max 2. Make sure the USB power source is 2000mA at full power and 5V output voltage. 3. Please do not ignore, the