DUAL USB 4.2A FAST CHARGER: This 12V car cigarette lighter socket features dual USB ports and an additional cigarette lighter socket. The total output of the two USB ports is 5V/4.2A (with one port providing 5V/2.1A), delivering a maximum power of 21W, which allows you to charge more than three devices simultaneously at the optimal current, making it ideal for powering your phone, tablet, GPS, digital camera, PDA, and other USB-powered accessories.
120W CIGARETTE LIGHTER SOCKET: The 12V auxiliary power outlet is equipped with a 120W female socket, which can power 12-24V vehicle accessories such as a tyre inflator, car fridge, power inverter, vacuum, coffee maker, air compressor, cooler, seat heater, and other car appliances. Perfect for keeping your vehicle's essential devices powered on the go.
LED VOLTAGE DISPLAY: With a blue LED voltage display, the dual usb 12 volt cigarette lighter socket automatically monitors the vehicle's battery and electrical system, to avoid the situation of running out of power and so on. If the voltage of the car is 11.6~14.8V, it means that the voltage is in the normal range. If the voltage is lower than 11.6V, it means that the voltage is too low and the vehicle needs to be checked. If the voltage is higher than 14.8V, the voltage is too high.