1. DC to AC converter has 4*USB 3.1A interfaces, suitable for power supply of 6 devices including smartphones, laptops, tablets, GPS devices, televisions, and power . 2. The LCD screen display the DC input voltage, and then you can detect the status of the car socket adapter and charge your electronic device when connected to the lighter plug. 3. Built-in smart chip automatically recognizes the voltage required by different devices, ensuring safe charging without damaging the device. 4. Overcharge, short circuit, shutdown, overload, overvoltage, undervoltage, , high temperature, impact, etc., helping to protect your charging device and extend its service life. 5. Equipped with intelligent temperature control function, the fan start running when the internal temperature of the inverter exceeds 50 ℃, and there may be slight wind noise. This phenomenon is normal and does not affect the use of this product. The fan automatically stop running when the internal temperature drops. 1. Rated