Features: 1.With voltmeter, cigarette lighter socket, 2 USB charger, convenient to install and use 2.Digital voltage display helps to real-time monitor your vehicle's electrical safety 3.2 USB charge slot can satisfy you charging needs to a great extent 4.Blue LED light can monitor the state of your battery between full charged and discharged 5.Waterproof design, blue LED light, easy to observe and safe to use Specification: Description:_x000D_ The item is a portable and practical car cigarette lighter with dual USB charger and blue voltmeter, which can be widely installed in 12V-24V boat, car, marine, etc. Dual USB port can be used for powering and charging 2 USB devices simultaneously. With easy and safe to use, it is really a wonderful car charger adapter for choice._x000D_ _x000D_ Features:_x000D_ 1. With voltmeter, cigarette lighter socket, 2 USB charger, convenient to install and use._x000D_ 2. Digital voltage display helps to real-time monitor your vehicle's electrical safety._x000D_ 3. 2 USB charge slot can satisfy you charging needs to a great extent._x000D_ 4. Fit for both 12V and 24V vehicles universally, like marine, boat, caravan, bus, truck._x000D_ 5. Blue LED light can monitor the state of your battery between full charged and discharged, indicate a poor or bad charging system._x000D_ 6. Waterproof design, blue LED light, easy to observe and safe to use. _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Material: ABS Plastic _x000D_ Color: Black _x000D_ LED Color: Blue _x000D_ Voltage: DC 12V _x000D_ Waterproof Rate: IP44 _x000D_ Panel Size:15 x 4.2 x 5cm / 5.9" x 1.65" x 1.97" _x000D_ USB Socket Power Output: DC 5V 1A / DC 5V 2.1A _x000D_ Package Weight: 95g _x000D_ Fitment: Fit for 12V-24V Vehicle, Motorcycle, ATV, Boat, Car, Marine, UTV, Camper, Caravans, Travel Trailer, etc. _x000D_ _x000D_ _x000D_ Package Included: _x000D_ 1 x Cigarette Lighter Socket_x000D_ 1 x Blue Voltmeter_x000D_ 1 x Blue Dual USB Charger _x000D_ 6 x Insulated Terminals_x000D_ 4 x Screws _x000D_ _x000D_ _x000D_ Note: _x000D_ 1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. _x000D_ 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. _x000D_ 3. Professionals install is strongly recommended to avoid trouble! PackageList: