A portable compressor of the tire in which an electrically powered compressor is housed in a case. The case having a hinged plug capable of being connected to and having fixed thereto by the connection a portable light fitting. The light fitting having permanently attached to it a length of electrical cord with a plug for temporary attachment to the cigar lighter of a vehicle to draw power from the vehicle's electrical system. The light fitting including an outlet socket to which the hinged plug can be connected for electrical connection of the electrically powered compressor and for fixing and supporting the light fitting on the case. The hinging of the plug allowing it and the light fitting when attached to it to be folded flat to the case for storage, and the light fitting to be upstanding from the case to illuminate the region of the case. When the light fitting is removed from the plug, however, it can be used as a portable light fitting independent of the case.