I use a DC-to-DC for my devices. It seems more efficent and you end up with
fewer power supplies.


"MKB" wrote in message
thlink.net...
140W DC-to-AC Power Converter

http://www.radioshack.com/searchsku.asp?find=22-148

Use your notebook PC, small TV, stereo, fan or other house-current device
in
your car. Vehicle's power-adapter outlet receives inverter, which receives
device. Whether you're working in your car or going on a vacation, this
connverter will be enjoyable as well as useful!