universal DC120W laptop car adaptor

MODEL:DC120W

.This model is a switching-mode power supply, operation at input DC voltage 12V to 16V and output dc voltage of 15V/16V/18V/19V/20V/22V/24V@6AMP load, with 8pcs tip connecter to suit to almost laptops,select output voltage to suit to laptop and make sure the polarity of tips connect correct before use,with many protection functions use for the notebook computer, power supply by 12V car battery. 
2.Electric Characteristics
2.1 Rated Input Voltage:DC12V; Vibration Input Voltage Range:DC12-16V;
2.2 Input Rated Current:12Amp max; Input Min. Current:100mA
2.3 Input Power:140W; Out Power :120W Efficiency>88%(TYP)

2.4 Output voltage:15V/16V/18V/19V/20V/22V/24V(0/-0.8V NO LOAD):DC15V-24V 

2.6 Output current:15V/16v/18v/19v/20V@6Amp max  22V/24V  5AMP(max)  USB port:5V 2A MAX
2.7 Short Circuit Protection :yes

2.8 Output low voltage protection:10v

2.9 Line Regulation:-+5%

2.10.Load regulation: -+5%


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%

Weight:308.6g

Case size:137*57*28mm