Features: brand new and high quality 1: Dual USB output voltage has three output schemes: 5V3.4A, 9V2.5A, and 12V2A. The content of the agreement includes 2. Fast charging port: DCP BC1.2, for Apple Divider3/ 1.2 for Qualcomm QC2.0/QC3.0, for Huawei SCP, for FCP, AFC, for Spreadtrum SFCP and other fast charging protocols, which can support for Huawei super fast charging. 2: Aluminum alloy, ABS resistant to high and low temperature, flame retardant and environmentally friendly materials, with a very high safety factor 3: Digital display voltmeter, battery status is clear at a glance 4: The product is distributed with fixed pieces, terminals, screws, and the installation is more convenient and beautiful. 5: The power taker can be used to supply power to the external equipment of the car, and can also be used for charging mobile phones, tablets, GPS, etc. Specifications: Product size: 17x5x9.2cm/6.69x1.96x3.62inch Product material: aluminum alloy + ABS environmental for protection material Product color: black Input voltage: DC12V Fast charge output: 5V/3.4A; 9V/2.5A; 12V/2A Number of USB: Two for QC 3.0 super fast charging Switch output current: 15A Product accessories: four self-tapping screws Product use: USB can be used to power mobile phones, tablets, for IPAD, GPS and other vehicle-mounted products. Range of use: It can be installed on for cars, motorcycles, ATVs, RVs, SUVs, boats, yachts, and other transportation tools. Note: 1.Please allow 1-2mm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set 1846b4 Switch+12 V with Lamp Holder+ USB Car Charger+LED Digital Voltmeter