A light bulb shaped lamp comprising: a hollow globe having an opening; a plurality of light-emitting modules (3, 3a, 3b) housed in the globe, each of the light-emitting modules (3, 3a, 3b) having a semiconductor light-emitting device that is a light source; a base for receiving electric power for causing the semiconductor light-emitting device to emit light; and a stem extending from the opening of the globe to an inside of the globe, the stem supporting the light-emitting modules (3, 3a, 3b); wherein the stem penetrates at least one of the light-emitting modules (3, 3a, 3b), and the light-emitting modules (3, 3a, 3b) are spaced a predetermined distance apart along an axis of the stem; wherein each of the light-emitting modules (3, 3a, 3b) includes a plate-like base platform, and the semiconductor light-emitting device is mounted on a surface of the base platform; wherein a first light-emitting module among the light-emitting modules (3, 3a, 3b) which is placed on a top side in the globe is provided in such a manner that the surface of the base platform on which the semiconductor light-emitting device is mounted faces the top of the globe; a first pair of lead wires for supplying electric power to the light-emitting modules (3, 3a, 3b); and characterized in that: the base is adapted to provide the electric power to a lighting circuit of the light bulb shaped lamp via a second pair of lead wires; each of the light-emitting modules (3, 3a, 3b) has a rectangular shape; and in that each of the two lead wires of the first pair electrically connects, at one end, to a corresponding one of two electric-power supply terminals provided on diagonally opposite corners of a second light-emitting module among the light-emitting modules (3, 3a, 3b) which is placed on a base side relative to the first light-emitting module, and electrically connects, at the other end, to the lighting circuit. a hollow globe having an opening; a plurality of light-emitting modules (3, 3a, 3b) housed in the globe, each of the light-emitting modules (3, 3a, 3b) having a semiconductor light-emitting device that is a light source; a base for receiving electric power for causing the semiconductor light-emitting device to emit light; and a stem extending from the opening of the globe to an inside of the globe, the stem supporting the light-emitting modules (3, 3a, 3b); wherein the stem penetrates at least one of the light-emitting modules (3, 3a, 3b), and the light-emitting modules (3, 3a, 3b) are spaced a predetermined distance apart along an axis of the stem; wherein each of the light-emitting modules (3, 3a, 3b) includes a plate-like base platform, and the semiconductor light-emitting device is mounted on a surface of the base platform; wherein a first light-emitting module among the light-emitting modules (3, 3a, 3b) which is placed on a top side in the globe is provided in such a manner that the surface of the base platform on which the semiconductor light-emitting device is mounted faces the top of the globe; a first pair of lead wires for supplying electric power to the light-emitting modules (3, 3a, 3b); and characterized in that: the base is adapted to provide the electric power to a lighting circuit of the light bulb shaped lamp via a second pair of lead wires; each of the light-emitting modules (3, 3a, 3b) has a rectangular shape; and in that each of the two lead wires of the first pair electrically connects, at one end, to a corresponding one of two electric-power supply terminals provided on diagonally opposite corners of a second light-emitting module among the light-emitting modules (3, 3a, 3b) which is placed on a base side relative to the first light-emitting module, and electrically connects, at the other end, to the lighting circuit. the base is adapted to provide the electric power to a lighting circuit of the light bulb shaped lamp via a second pair of lead wires; each of the light-emitting modules (3, 3a, 3b) has a rectangular shape; and in that each of the two lead wires of the first pair electrically connects, at one end, to a corresponding one of two electric-power supply terminals provided on diagonally opposite corners of a second light-emitting module among the light-emitting modules (3, 3a, 3b) which is placed on a base side relative to the first light-emitting module, and electrically connects, at the other end, to the lighting circuit.