Vibration input voltage range: AC95V-265V Input rated. Current:0.5AMP Input Min. Current:0.1A Efficiency >80%(tpy) Output voltage:16v/18v/19v/20v(0/+0.6v/NO LOAD): DC16V-20V Output voltage:16v/18v/19v/20v(-0.4v+0.5v@/rating LOAD) "DC16V-20V 3.7AMP(max)" Output current:3.7A@16V/3.3A@18V/3.2A@19V30A@20V Output over voltage protection >24v: Yes Overload protection: Yes Short circuit protection: Yes Ripple Noise:500MV Used for all kinds of Notebook computer: DELL, HP, IBM;TOSHIBI;SONNY;ACER;BENQ ETC