?Wide compatibility: Effectively compatible with various cell phones,tablets,car recorders and other USB devices for charging,widely used in mainstream models with 12-24V voltage input,compatible with various models of cigarette lighters,including family cars,business SUVs,off-road sports cars,etc. ?LED light and anti-fall:When the car charger is charging,which will have LED light display,You don't need to struggle to find the charging port in the dark any more and the soft light increases the warm atmosphere in the car.On both sides of the charger we have strengthened the anti-slip shrapnel, elastic and solid,even if driving on uneven mountain reads,there will be no power failure. ?Smart chip protection:Our compact charger has a built-in upgraded smart master core chip that contains a power management chip and a fast charging protocol chip.It can provide protection against over voltage,over current,over temperature and over power short circuit.It can also intelligently identify electronic devices and adjust the current output to ensure your safe charging while driving. ?Voltage detection:Car cigarette lighter adapter with LED digital display voltage meter, you can monitor and display the voltage of the car battery in real time,to master the health of the car's electrical system,let you take timely measures to avoid possible breakdowns during driving.Help you drive safely and discharge safety hazards. ?QC3.0/PD fast car charger:The 4-port car charger comes with a PD 2.4A USB C port,tailored for fast charging for phones, with 20W power, far exceeding the charging efficiency of the original charger. And 1* QC 3.0,2*USB A ports, compatible with most mainstream cell phone fast charging, can charge 4 devices simultaneously charging,gets to 90% charge in <45 minutes,to achieve real stability and speed.