Input voltage: 100-240VAC Input frequency: 50/60Hz Output watt: 90W Output: 19.5V(18.5-20.5)VDC 4.6A MAX Efficiency: =88% Stand by power: = 0.2W Size:129(L)53(W)30(H) mm AC: C8 With conversion efficiency up to 88% and standby power low to 0.2W, the product is more energy-saving and environment friendly It has OVP,OCP,OTP, and SCP protection and a low operating temperature, protecting your safety. It includes 8 different notebook tips for compatibility with a wide variety of leading notebook brands. Certified by CE,CB,GS,CCC,FCC,UL,RCM