Product Name: Car and motorcycle modified USB with waterproof / dust cover with red voltage displayProduct model: C4247Product net weight: 33GProduct gro weight: 50GProduct size: product head diameter: 3.7CM total length 5.4CMOpening size: 28mmProduct material: ABS high and low temperature resistant flame retant envmental protection materialProduct color: blackLight color: redInput voltage: DC12V-24VOutput voltage: 5VOutput current: 2.1AVoltage measurement range: 6-28VWorking temperature: -20 ° C -60 ° CProduct Usage:Can be used to power most car acceories such as mobile phones, tablets, AD, and .[ of use]: Can be installed on cars, motorcycles, ATVs, RVs, SUVs, boats, yachts, etc.Product advantages:[1] 2.1A current charging port is used to supply power to most car acceories such as mobile phones, tablets, AD, and .[2] The input voltage is DC12-24V universal voltage, which can be installed on vehicles, motorcycles, RVs, SUVs, boats, yachts, etc.[3] ABS is resistant to high and low temperature, flame retant and envmentally friendly materials, and can be used in -20 ° C - 60 ° C envment.Installation method: open 28mm hole installation,Wiring method: "+" is connected to the positive pole; "- is connected to the negative pole"Product acceories include: 1 car charger; 55CM double line