Z.Auto 12v/24v Cigarette Lighter 2 Way Socket Adapter Splitter Plug Motorcycle Car Widely used with electric equipment for power supply:Vehicle,GPS, mobile phone, camera, mp3. Wiring kit for cigarette lighters to install in any 12V-24V motorbike, Boat, Riding mower, tractor or car. Overall Size: about 10.5 x 4.5 x 6cm Barrel inner diameter:2.1cm/0.83"?Barrel inner length:3.6cm/1.42" Input: DC12V-24V.