1Versatile Design: Switch panel can be used as headlight switch, fog light switch, view width light switch, car refrigerator switch, car vacuum cleaner switch, etc. 2LED Voltage Display: The voltage meter is mounted in the center of the USB charger, clearly displaying the current reading of the working voltage, and easy to notice the voltage condition of the vehicle. 3Advantages: This switch panel integrates 4 switches and QC3.0 dual USB charger and voltmeter. Suitable for most 12V?24V Dc cars, UTVs, ATVs, trucks, trailers, RVs, caravans, buses, marine yachts, etc. 4Efficient Charging: The dual USB charger allows you to charge two devices at full speed at the same time, the switch works with all USB powered devices and makes the charger 40% faster than traditional chargers. 5Outstanding Features: The switch panel is made of Abs and Pbt and Pc, not easy to rust, not easy to heat, with over current and short circuit protection to ensure safe charging.