Posted by a reviewer on Amazon

I use this power for my 2009 hp g71 laptop and and hp g65 laptop and and iphone and it supports all this stuff just fine some complaints about a green and red light i saw but that just means it switched to surge watts which is 400 and it lasts up to an hour on that nothing bad also you need to check the wattage on your laptop some of the older laptops draw a lot of power so you need a bigger inverter but most of the time this will work for any laptop after 2005 or so

Posted by a reviewer on Amazon

Plug into civic lighter plug and turn on ignition and you get a red led but no ac power out

Posted by a reviewer on Amazon

I tried two other adapters and they failed to support the load on my sony vaio z series laptop adapter

Posted by a reviewer on Amazon

What i did find on some planes was that i needed to plug each in orderpower port adapter computer

Posted by a reviewer on Amazon

Was plugged in the full time and never got hot

Posted by a reviewer on Amazon

Pretty sure it is a modified sine wave type inverter because it causes a buzz in my radio

Posted by a reviewer on Amazon

I most likely would use it to power a low wattage led light or other device but not any type of ham radio

Posted by a reviewer on Amazon

It does have a hum