Description: Car Cigarette Lighter Socket Dual USB Adapter Charger + Digital Voltmeter Multifunctional product, perfect for travel use Easy to install Multifunctional product, perfect for travel use Universal for 12-24V Cars, caravan, yachts, boats, vehicles refit Specification: Short circuit / overheat protection 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 fastened with 4 screws and 4 Insulated Terminals (supplied) Color: Black Material: ABS + Metal Size: approx. 14.8x4.2x5cm USB Charger : 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 (cannot 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/0.83" Barrel inner length:3.6cm/1.42" Can be used to light cigarettes: No Wiring kit for cigarette lighters to install in any 12V-24V motorbike, Boat, Riding mower,tractor or car Optimised for iPad, iPhone & iPod - fast charging at full speed (2.1Amps for iPad, 1Amp for iPhone/iPod) Apply to all USB charging mobile phones or other electronic products. Run multiple accessories at one time, very convenient and easy to use Package Includes: 1 Piece 12-24V Dual USB Adapter Charger + Cigarette Lighter Sockets + Digital Voltmeter 4 Pieces Screws 4 Pieces Insulated Terminals