The improved small switch of this invention comprises: a housing having at least one open end; main contact contained in the housing and having at least one first movable contact element and at least one first fixed contact element; a cover member mounted on the open end of the housing; a movable operating handle whose one end is disposed within the housing and the other end extends through and projects from the cover member; an illuminator disposed at one end of the movable operating handle; a converter member disposed at the other end of the movable operating handle for making or breaking the main contact; second movable contact elements fitted to the converter member; lead wires disposed within the interior space of the movable operating handle and connecting the second movable contact elements and the illuminator; and second fixed contact elements disposed within the housing, with which the second movable contact elements are brought into contact. This switch also includes an insulating member contained in the hollow interior space of the movable operating handle and having at least two through bores into which the terminals of the illuminator and the bare end portions of the lead wires are inserted so as to make firm contact with each other.