800mA Switch Mode DC/DC Converter that works from 12 volts.  It has 7 outputs  - 1.5v, 3v, 4.5v, 6v, 7.5v, 9v and 12v.  It is ideal for running small appliances such as, MP3 players and Video Games, etc.

It plugs into a standard cigarette lighter/auxilliary socket in 12v vehicles and has 6 different adaptor plugs - 1.3mm, 2.1mm, 2.5mm, 1.5mm DC plugs and 2.5, 3.5 Jack plugs.

It also has reversible polarity and Thermal, Short Circuit and Overload protection.