Grtsunsea 3 In 1 Dual USB Power Socket + Digital Voltmeter + 12V Car Cigarette Lighter For Car Truck Van Boat MotorcycleCategory: Car Power Socketpackage included: 1x car 12v dual usb adapter + cigarette lighter sockets + digital voltmeter 1x cigarette lighter 4x screws 6x insulated terminalsitem specifics: color: black material: abs + metal size: about 14.8x4.2x5cm support cigarette lighter function！！！usb : operating voltage: 12v interface: 2 output: dc 5v 2.1a max indicator: blue led widely used with electric equipment for power supply: vehicle,gps, mobile phone, camera, mp3 (can smoke) allow any automotive with a cigarette plug attachment to be used with these surface mount cigarette sockets.voltage meter: operating range: dc 4-24v display: digital display the meter has easy to read red led segments and connect to your 12 volt system. cigarette lighter: operating voltage: dc 12v barrel inner diameter:2.1cm/0.83amp;quot; barrel inner length:3.6cm/1.42amp;quot; can be used to light cigarettes: yesdescription：* wiring kit for cigarette lighters to install in any 12v-24v motorbike, boat, riding mower, tractor or car.* optimised for ipad, amp;amp; - at full speed (2.1amps for ipad, 1amp for /).* apply to all usb mobile phones or other electronic products. run multiple accessories at one time, very convenient and easy to use.* 100% and high quality.* short circuit / overheat protection.* multi-functional product, perfect for travel use.* waterproof dustproof material can be used for the interior and exterior application.* can be installed vertically, horizontally or underneath the dash, or any flat surface.* easy to install - no need to cut out a big hole in the panel, these sit on the dash and ened with 4 screws and 6 insulated terminals (supplied).Car 12V Dual USB Adapter + Cigarette Lighter Sockets + Digital VoltmeterItem specifics: Color: Black Material: ABS + metal Size: about 14.8x4.2x5cmUSB : Operating voltage: 12V Interface: 2 Output: DC 5V 2.1A MaxIndicator: Blue LED Widely used with electric equipment for power supply: Vehicle,GPS, mobile phone, camera, mp3 (can smoke)Allow any automotive with a cigarette plug attachment to be used with these surface mount cigarette sockets.