General Description The Rocketek Multifunctional Dual USB Socket Panel is ideal for organizing and enhancing your vehicle's power supply. With a 4-in-1 design, it integrates two 4.2A USB charging ports, an LED digital voltmeter, a 12V cigarette lighter socket, and an LED rocker switch. This product is designed to ensure safety and convenience when using multiple electronic devices in the car. Technical Specifications 12V car charger with overcurrent, overheat, and overload protection Real-time digital voltage and current display CE, RoHS, and FCC certifications Compact dimensions for easy mounting Compatibility and Accessories Compatible with most electronic devices: iPad, iPhone, iPod, GPS, digital cameras Ideal for use in cars, boats, RVs, and trucks Installation The installation of the switch panel is quick and easy. Simply attach it to the desired location in your vehicle using the included instructions. Ensure you have adequate access to the electrical connections for a safe installation. Usage Use the USB ports to charge two devices simultaneously. The voltmeter allows you to monitor your battery voltage in real-time, ensuring safe use of your electronic equipment. The rocker switch allows you to turn off the panel to save energy when not in use. Other Information This product comes with a 24-month warranty, allowing you to use it with confidence.