Universal 90 Watt Notebook Power Adapter (for all notebooks requiring up to 90 Watts) LCD screen displays output voltage. 19 exchangeable DC connectors for more than 100 models of laptops and LCD televisions. Provides a wide range of output voltage: 5V 9.5V 12V 14V 15V 16V 18.5V 19V 19.5V 20V 22V. All the switches are automatic, such as switching to the indicated output voltage, switching to charging function. Safety protection: Over temperature protection at 85C, Over voltage protection reaches at 24V, Over current protection reaches at 6.5A, Short circuit protection & Charging time protection.