... 3> USB Out 0.5V 150W smart car inverter Feature:Purpose:for play MP3,play MP4 ... cellphone ,digital camera,DV vidicon,plam computer,CD/DVD emergency lighting ,electric fan ,electric blanket digital ... camera,DV vidicon,plam computer,CD/DVD emergency lighting ,electric fan ,electric blanket hand-held ... inerter can convert 12V(24v for diesel powered car) DC of automobile to 220v /50HZ AC ...