universal car adaptor for laptop

Product Description

This high power DC adaptor is designed to power the popular brand botebook computers which require DC from *5V to *4v while you are travelling in the car. the adaptor features overload and short circuit protect to protect it from damage. OPERATING INSTRUCTIONS: voltage selection: 1: determine proper output voltage ***** rating plate and the voltage indication marked next to the jack on your computer.you may find the voltage in your AC adaptor or in the computer user's manual. 2:set the voltage switch on the boby of the adaptor in the proper voltage. TIP POLARITY SELECTION 1: determine proper connector size.please note that the polarity of the connector plugs are presetted with the positive tip in ***** polarity can result in permanent damage to your ***** symbol for tip polarity is shown below: 2, insert connector output plug into your computer. 3, insert adaptor into vehicle lighter ***** LED will light to indicate proper operation. if LED fails to light, see fuse replacement. 4, turn on computer, if it does not operate, immediately disconnect and review the above steps. SPECIFICATION: INPUT:DC****4VOLTS OUTPUT:DC*5/*6/*8/*9/*0V 4.5Amax DC *2/*4V 3/*6Amax fuse for overload protection.(*0AMP) CAUTION:1, for DC*2v car use only. 2, ensure correct voltage&polarity is used as continuous excess voltage or faslse polarity could damage your computer. 3, do not use this adaptor with appliance that exceeds *0W. 4, do not attempt to open this unit. 5, remove from vehicle lighter socket when not in use. 6, always turn off the computer before you connect/disconnect the car adaptor. 7, please do start the car engine frist then plug in the car adaptor.