BlueFire Dual USB 4.2A Charger Adapter and LED Voltmeter Panel Waterproof 12V-24V for Motorcycle Car Boat Marine Carvan<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Waterproof LED illuminated USB charging socket &amp; Voltmeter Fits for any flat interior and exterior application. </span></li><li><span class="a-list-item"> 4.2A Dual USB Power Charger， Great for charging your Phones， Tablet， Android Devices， PDA， GPS ect. </span></li><li><span class="a-list-item"> LED Dynamic Voltmeter Help monitor the storage-battery voltage， LED will alarm flash if the voltage is out of the safety range </span></li><li><span class="a-list-item"> Universal compatible with 12V-24V Motorbike Car / Boat / ATV / UTV / Camper / Caravans / Travel Trailer etc. </span></li><li><span class="a-list-item"> Product Dimensions: 10.5cm x 4.3cm x 5.5cm (4.13in x 1.69in x 2.17in)， Portiforium Dimension: 7.2cm x 2.9cm(2.83in x 1.14). </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41FlwBOxXVL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ZvrSXJYJL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51Be%2BhFm5AL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51S9-wRjcpL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51iykpnGU0L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/411CBdLE5sL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51fSr0e5KNL.jpg" noproxy>