It can convert DC12V/24V electricity provided the automobile into AC power, and be widely used with those electric equipments, such as notebook, cell phone, razor, digital camera, digital video, TV, CD, DVD, game machine, cleaner, refrigerator, electric light, charge and various kinds of professional tools, as the necessity for your travel, mobile office, outdoor work and special vehicle, it is the very solution to using electricity in the automobile. With the multiple protection circuit, it would do no harm to the equipment and automobile. Special versatile socket can be suitable for various kinds of plugs.