Features: Brand . USB Step Up Converter Cable is not suitable for high current equipment, and the cable cannot be used to charge batteries. USB to 6V cable can replace 4x AA/AAA 1.5V batteries and power other 6V devices under 6W. USB to 9V cable can replace 9V 6F22 battery; suitable for multimeters and other 9V devices. USB to 12V cable suitable for LED lights and other 12V devices under 6W. Power supply compatible with power bank, USB charger, and USB 5V 2A adapter. Specifications: Black wire is negative (-), red wire is positive (+). Color: Black Material: Plastic Power cable length: 103cm Input: DC 5V 2A Output: DC 6V 1A (max), 9V 0.65A (max), 12V 0.5A (max) (optional) Note: 1. Conversion: 1cm = 10mm = 0.39 inch 2. Please allow 0–1cm error due to manual measurement. Ensure you are comfortable with this before purchasing. 3. Due to differences in monitor displays, the actual color of the item may vary slightly from images. Package includes: 1 x USB Voltage Step Up Power Supply Cable Note: Due to lighting and screen setting differences, the item's color may differ slightly from pictures. Slight dimensional variations may occur due to manual measurement.