Syba Connectland CL-CAR-CMBCHG USB/1394a Car Charger Use your cigarette lighter to charge any devices that can rely on USB/FIREWIRE for power Turn on your car first. Plug the charger into the cigarette lighter socket Removing it from the cigarette socket before turning off your car Input: 12 V ~ 24 V, 2 A , 24 W ~ 48 W Output: 5 V, 500 mA, 2.5 W (USB). 12 V, 500 mA, 6 W (FIREWIRE)