This USB 5V to 12V car cigarette lighter step-up cable is an innovative power conversion device designed specifically for in-car use. It can boost standard 5V USB power to 12V, compatible with car cigarette lighter sockets, meeting the power needs of various car devices. Equipped with an efficient step-up chip, it offers high conversion efficiency and low heat generation, ensuring safe and stable operation. Built-in multiple protection mechanisms, including over-current, over-voltage, and short-circuit protection, provide added safety. Ideal for powering car refrigerators, air purifiers, car vacuum cleaners, and more, it is a reliable companion for your travels. Compact and easy to install, it is the perfect solution for in-car power needs.