This high power AC adapter is designed to power the popular most brand laptop computers which required DC input from 15V to 24V at home , in office or hotel . The adapter feraures short circuit to protect it form damage. Two integrated USB ports Charges USB devices like MP3 , PDA, Cellphone and More.

Specifications:
Output Power: 120W
Efficiency: >80%(TYP)
Input Voltage: AC100 -265V 47-63Hz
Input Current: 1.8A
Output voltage: DC15-DC 24V
USB Port: 5V/500mA
Output Current: 15V, 16V, 18V, 19V, 20V / 6.0 A and 22V, 24V / 5.0 A

Feature:
1) Innovative Universal Laptop AC Power Adaptor 120W (with Dual USB Ports);
2) It is designed to provide reliable power for today's high-performance notebooks from 10" to 19" size;
3) It also has DUAL USB power output for simultaneously charging cell phone, IPod, PDA, MP4 and other USB devices;
4) Includes 8 interchangeable connectors for use with major-brand notebooks and other portable electronic devices require less than 120W like printers, LCD monitor...
5) LED indicator lamp can tell 7 adjustable output voltage;
6) With High Power Factor Correction circuit, Q>0.99;
7) Accurate regulated output, low ripple and low interference;
8) Realize minimum efficiency >85%;
9) Meet CE certification Standard and ROSH requirement;
10) With all safety protection: Over-voltage, over-load, over-temperature protection, surge protection, and reset table short circuit protection.

Eeight different size interchangeable connectors for variale laptops:
--6.3(O.D)*3.0(I.D)mm;
-- 5.5(O.D)*2.5(I.D)mm;
-- 6.5(O.D)*4.4(I.D)mm;
-- 4.8(O.D)*1.7(I.D)mm;
-- 5.5(O.D)*2.5(I.D)mm;
-- 5.0(O.D)*3.0(I.D)mm;
-- 5.5(O.D)*2.1(I.D)mm;
-- 6.5(O.D)*4.4(I.D)mm.

Operation Instruction:
-- Step 1:Set DC Output Voltage: The adapter has a button that enables you select the appropriate voltage.Please refer to the notebook you are powering to determine voltage.The correct voltage should be marked on the DC input jack.If not,refer to the notebook manual to determine the proper voltage setting. ALWAYS select the voltage close to the devices original reurirement. For example,if your laptop DC input require is 19.5V,you can set at 19V first,or even set at 20V;
-- Step 2: Selecting right tip connector: 1).Determine proper connector size.2).Insert connector output plug into your computer.3).Insert adapter into vehichle light socket. 4).Turn on computer.If it does not operate,immediately disconnect and review the above steps.

CAUTION!!!
-- Select output voltage to suit to laptop and make sure the polarity of tips connect correct before use
-- Do not use this adapter with applicance that exceeds 90W;
--Do not attempt to open this unit;
-- Remove form vehicle lighter socket when not in use;
-- Always turn off the computer before you connect/disconnect the charger;