【3 in 1 Car Charger】: This USB cigarette lighter adapter can charge 3 devices at the same time. PD 3.0 port + QC 3.0 dual high-speed output up to 36W + 15W (max) power, compatible with Samsung s21/s20 and more new USB c chargers. PD 3.0 port charging can output up to 36W, and charging two USB-C devices at the same time can reach the best output up to 3V/5A, charging your devices at full speed. 【LED Voltage Display】: Dual quick charger 3.0 ports total 3A max, the USB C car adapter automatically monitors the vehicle's battery and electrical system, and displays the vehicle's voltage on the screen, you will know the battery status while driving. With the excellent design of the soft light indicator, it is convenient for you to find the cigarette lighter in the dark and drive safely. 【Safety Protection】Provides overcurrent, overvoltage and overcharge protection, which not only ensures the safety of your car and charging equipment, but also greatly extends the service life of the car