DescriptionMade of brass material and electronic components, durable and safety use.It is suitable for the installation and use of large-scale automobile such as van, cars, ships, truck, buses, etc. Supports all mobile phones, tablets and car appliances (all models with working voltage 12-24V can be installed and used). USB is car charger Provides charging and durability.Features- Color: Black. - Material: Brass+Electronic Components. - Size: 6.5 x 2.5 x 3cm. -Input voltage: 12V. - Output voltage: 5V. - Output current: 2000mA. - Working temperature: 0--50 C. - Output interface: USB. -Made by brass andelectronic component material, durable and provide long service life. -Overvoltage protection, anti-surge protection, overcurrent protection, over temperature protection, anti-static protection, let you use it more safety and charge your digital device easily. - The input voltage of the product is 12-24V, all trucks of 12-24V can be installed and used, and the scope of use is very wide. - Equipped with 3.1A dual USB, which can be used for power supply of mobile phones, tablets, GPS, etc. let you use your electronic device more freely. - The product is equipped with a voltmeter, which can detect the use of the car battery at any time and prevent safety accidents caused by poor battery. - Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!