Laptop Computer Universal Switch mode DC-DC Multi-Voltage Car Power Supply
Run your laptop computer, PDA, walking talking, digital camera, portable fax, printer, DVD player, Game Boy, ETC. from your car battery. This switch mode regulated 13.8VDC input DC- DC converter power supply will increase the voltage to run a laptop computer from a car. - Input voltage 12 - 15VDC car battery power- Output voltage features 7 different voltages to suit most laptops 15V, 16V, 18V, 19V and 20VDC @ 3.5A regulated and 21V,Supplied with 5 changeable output plugs: 2.1 x 5.5mm, 2.5 x 5.5mm, 3.0 x 6.3mm, 1.4 x 6.0mm, 1.7 x 4.75mm- Stabilized output, low ripple and low interference- Short circuit and overload protected- High efficiency and low energy consumption- Power LED monitor

WARNING: Be extremely careful, and triple check that you have the output plug connected with the correct polarity to suit your laptop. Connecting with the polarity the wrong way will damage a laptop computer, If unsure seek professional guidance.