Ciciwong90W Universal Notebook Regulation Manual Power Adapter 8Tips+5V/1A USB Charging Function 1.This is an universal switching-mode power supply for most brands of laptops. 2.It operates at input AC 100V-240V/50-60Hz,output DC 8 voltages:12V/15V 16V/18V/19V/20V /21V/24V ,output max 6A/90 Watt,with protection functions: Overload Protection,over Voltage Protection,hort Circuit Protection,owner supply by mains supply. 3.With 8 tips connector to fit most laptops.Select output voltage to fit your laptop and make sure the polarity of tips connect correct before use. 4.Power Source: Mails Supply Use your outlets to plug in at home or office or in the hotel.Select a tip for your laptop,hen adjust voltage to fit your laptop. 5.USB(5V/1A) Charging functions at anytime and anywhere as you wish.