Features: The AAA battery eliminators to replace AAA Batteries, providing a convenient and cost effective solution for powering your devices. Input USB5V, one black battery output is 4.5V, two black batteries output is 3V, and the yellow virtual battery is 0V, only used as a conductor. This product is mainly designed for decorative lights using AAA battery box, avoiding the problem of battery consumption and frequent replacement after prolonged use. Replacing AAA batteries with this product saves the hassle of replacement and can save be energy saving. Suitable for Christmas LED lights, toy, various holiday decorative lights, fan, cameras, and various 4.5V 3V AAA battery powered product. Specifications: Material: Plastic Cable Length: Approx 300cm/9.8ft/118inch or 150cm/59inch/4.9ft Battery Length: Approx 4.3cm/1.69inch Tyep: 1 to 1, 1 to 3, 1 to 5, 1 to 10(optional) Package Includes: 1 Set AAA Battery Eliminators note: 1 to 1 Type is 150cm, while the other types are 300cm. Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.