.This model is a switching-mode power supply, operation at input DC voltage 11V to 14V and output dc voltage of 16V/18V/19V/20V@4AMP load, with many protection functions ,use for the notebook computer, power supply by mains supply. 2.Electric Characteristics 2.1 Rated Input Voltage:DC12V; Vibration Input Voltage Range:DC11-14V; 2.2 Input Rated Current:6-8A; Input Min. Current:400mA 2.3 Input Power:80W; Efficiency:>80%(TYP 2.4 Output voltage:16V/18V/19V/20V(0/+0.6V NO LOAD):DC16V-20V 2.5 Output voltage:16V/18V/19V/20V(-0.4/+0.5V@rating load):DC16V-20V 2.6 Output current: 4AMP(max) 2.7 Output over voltage protection:>24V 2.8 Overload protection 2.9 Short Circuit Protection 2.10 Ripple Noise:500mV 2.11 Line Regulation:1% 2.12 Load Regulation:1% 3. Normal Operating Temperature and Humidity: Operating Temperature: 0?? to 40?? Humidity: 20% to 80% 4. Storage Temperature and Humidity: Storage Temperature: -10?? to 70?? Humidity: 10% to 90% mpera n0?0?y: 7.1 Storage Temperature: -10℃ to 70℃ 7.2 Humidity: 10% to 90% 
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