Product Description: Feature: - Widely used for power supply of electrical equipment: car, GPS, mobile phone, camera, mp3 - USB socket 5V up to 2.1A,18W Output Power . - With voltage display, the LED display shows the car battery voltage in real-time. - Short circuit or overheat protection. - Waterproof protective cover and USB cover. - Multifunctional product with Green LED indicator light, perfect for travel use. - Water and dust resistant materials are available for interior and exterior applications. - Can be installed vertically, horizontally, under the dashboard, or on any flat surface. - Optimized for iPad, iPhone and iPod - Fast charging at full speed (2.1 amp for iPad, 1 amp for iPhone or iPod). - Works with all USB charging mobile phones or other electronic products. Running multiple accessories at once is very convenient and easy to use. Specification: Input: 12V-24V Output: 5V 4.2A Output:18Wand18W=36W Colour: Black LED light color: green Material: ABSandmetal Weight: 30g Single size: 38x28mm Notes: Check-in advance the maximum voltage of the device to be charged. Be sure to cover the socket when not in use to prevent dust and water from entering. This product is only suitable for 12 or 24V vehicles. Use only at the specified voltage. Do not operate this device while driving. Package Includes: 1 x Dual USB Car Charger Adapter 1x wire with 10A fuse or Package Includes: 1 x Dual USB Car Charger Adapter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.