Features: The output of one black battery is 4.5V, the output of two black batteries is 3V, and the yellow virtual battery is 0V, only used as a conductor. American plug input: AC110-120V 60Hz, European plug input: AC220V-240V 50/60Hz, British plug input: AC220V-240V 50/60Hz. This product is mainly designed for decorative lights using LR14 C battery box, avoiding the problem of battery consumption and frequent replacement after prolonged use. Replacing LR14 C batteries with this product saves the hassle of replacement and can save be energy saving. Suitable for LED lights, water heaters, gas stove, and various 4.5V 3V LR14 C battery powered product. Specifications: Material: Plastic Cable Length: Approx 300cm/9.8ft/118inch Battery Length: Approx 4.6cm/1.81inch Tyep: 1 to 1, 1 to 3, 1 to 5, 1 to 10(optional) Plug Type: European Plug, American Plug, British Plug(refer to pictures to select please) Package Includes: 1 Set LR14 C Battery Eliminators with Power Plug note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.