The device according to the invention comprises a light source and electronic supply and control means. The electronic means comprise at least one circuit comprising at least one stack of chips formed from at least two power components (IGBTb1, IGBTh1). According to one embodiment, the light source comprises a discharge lamp and the circuit with stacking is a DC/AC converter supplying the discharge lamp. Preferably, the discharge lamp is of xenon type and the circuit with stacking is included in an electronic ballast of the device. In another embodiment, the circuit with stacking is included in an electronic module associated with the discharge lamp and forming therewith a compact assembly.