For Barnes & Noble Nook Color / Nook Tablet eReader USB Car Charger Adapter Slim, small, and portable design to elimate space that regular charger take up. Car Adapter Input: 12V-24V DC; Output: 5V - 1000mA DC. The slim design will fit like a plug in car cigarette socket. Lightweight and ultra-low profile USB Car Charger with USB power port and LED power indicator Simply connect the usb cable (not included) that is compatible with your device to instantly gain charging power.