Compact 40 Watt universal notebook car/truck power adapter with selectable power output to assure compatibility with most notebook models. Charge your notebook through your 12V car cigarette lighter or through the 24V socket in your truck 8 different notebook connectors included Selectable power output: DC 7,5/9,5/12/15/16/18,5/22 Volt Protected against overload, short circuit and overheating