Abstract: The illuminator module is composed of one or more lighting chips, a heat dissipating body and two conductive strips. The heat dissipating body is provided with two positioning grooves for accommodating the conductive strips separately. The heat dissipating body including the positioning grooves is under oxidation treatment to form an insulating layer on its surface. The lighting chips are mounted on the insulating layer. The conductive strips are embedded in the positioning grooves separately. A wire is disposed between the lighting chip and conductive strip for constituting an electric connection. The lighting chips can illuminate when an external power source is connected through the conductive strips.