Newly Upgraded voltage detection and precise display Runs Multiple Accessories At The Same Time, Very Convenient, Easy to Use & Fashionable Design Three Cigarette Lighter Sockets with Three Independent Switches. LED Indicators help to Easily Find the Sockets in Dark Two USB Ports for Simultaneously Charging. Voltage Detection for Car Battery; Master the car battery info at any time Built-in Smart Chip to Adjust the Output Voltage and Current Automatically for Different Devices Compatible with USB Charged Mobile Phones or Other Electronic Products 4 Different Protections: Overheating Protection, Short Circuit Protection, Overcurrent Protection, Overvoltage Protection Multi-functional Product, Perfect for Travel Universally Fits for Most DC 12-24V Vehicles, Cars, SUVs, Motorcycles, Boats, Marine, etc. Specifications: Material: ABS Input Voltage: DC 12V-24V Cigarette Lighter Output: DC 12V-24V 3-hole OutputPower: 100W USB Port: 2 USB Output: DC 5V/3.1A(Max.) Dimension: Approx. 9.1 x 5 x 3.2cm. Cable Length: Approx. 70cm Package Included:   1x Car Cigarette Extentioner   1x Adhesive Sticker   1x Spare Fuse