Get rid of your messy cigarette lighter car chargers, and fit something more permanent and better looking. This 2 port USB charger has one port with 1.0A for charging a Smartphone, and the 2nd port can deliver 2.1A for fast charging your Tablet. Input power compatible with 12V and 24V battery systems, with connection via 6.3mm spade terminals. Supplied with panel mount, under dash bracket, and a surface mount "hood" Dimensions: 2port USB Charger: 36(Dia) x 50(D)mm Panel mount: 60(W) x 42(H)mm Under dash bracket: 58(W) x 51(H) x 15(D)mm Surface mount hood: 55(W) x 80(L) x 50(H)mm DC current rating : 3.1A DC Voltage : 12.0V Width : 58.0mm Height : 51.0mm Depth : 15.0mm Output Type : USB Type A Output Connection : Socket Number of Outputs : 2.0pc Type of converter or transformer : DC to DC