An illumination light source comprising: a light-transmissive globe; a light-emitting module; a drive circuit for causing the light-emitting module to emit light; and a pedestal which includes: a support for fixing the light-emitting module at a predetermined position inside the globe; a mounting for holding the support; and a heat dissipation portion, wherein the heat dissipation portion is between the drive circuit and an area for disposing the support on a main surface of the mounting which is on a side where the light-emitting module is provided, and has a surface which forms an angle with a back surface of the mounting which is on a side opposite the main surface, characterized in that: the light-emitting module includes a light-transmissive board and a light emitting element mounted on the board; the board has a first main surface on which the light emitting element is mounted, and a second main surface opposite the first main surface, and is connected to the support such that the second main surface and the support are in contact; the mounting is a disc-shaped component having a step portion, and includes a large diameter portion having a larger diameter and a small diameter portion having a smaller diameter, the small diameter portion protruding from the large diameter portion toward the light-emitting module, the back surface of the mounting includes a recessed surface portion which surrounds the heat dissipation portion, the recessed surface portion having a size corresponding to the small diameter portion, the mounting has two insertion holes in an area of the small diameter portion other than the area for disposing the support, the two insertion holes being openings formed through the main surface and the recessed surface portion, lead wires are inserted through the two insertion holes, the lead wires connecting the drive circuit and the light-emitting module, and the two insertion holes have an inside diameter greater than an outside diameter of the lead wires. a light-transmissive globe; a light-emitting module; a drive circuit for causing the light-emitting module to emit light; and a pedestal which includes: a support for fixing the light-emitting module at a predetermined position inside the globe; a mounting for holding the support; and a heat dissipation portion, a support for fixing the light-emitting module at a predetermined position inside the globe; a mounting for holding the support; and a heat dissipation portion, wherein the heat dissipation portion is between the drive circuit and an area for disposing the support on a main surface of the mounting which is on a side where the light-emitting module is provided, and has a surface which forms an angle with a back surface of the mounting which is on a side opposite the main surface, characterized in that: the light-emitting module includes a light-transmissive board and a light emitting element mounted on the board; the board has a first main surface on which the light emitting element is mounted, and a second main surface opposite the first main surface, and is connected to the support such that the second main surface and the support are in contact; the mounting is a disc-shaped component having a step portion, and includes a large diameter portion having a larger diameter and a small diameter portion having a smaller diameter, the small diameter portion protruding from the large diameter portion toward the light-emitting module, the back surface of the mounting includes a recessed surface portion which surrounds the heat dissipation portion, the recessed surface portion having a size corresponding to the small diameter portion, the mounting has two insertion holes in an area of the small diameter portion other than the area for disposing the support, the two insertion holes being openings formed through the main surface and the recessed surface portion, lead wires are inserted through the two insertion holes, the lead wires connecting the drive circuit and the light-emitting module, and the two insertion holes have an inside diameter greater than an outside diameter of the lead wires. the light-emitting module includes a light-transmissive board and a light emitting element mounted on the board; the board has a first main surface on which the light emitting element is mounted, and a second main surface opposite the first main surface, and is connected to the support such that the second main surface and the support are in contact; the mounting is a disc-shaped component having a step portion, and includes a large diameter portion having a larger diameter and a small diameter portion having a smaller diameter, the small diameter portion protruding from the large diameter portion toward the light-emitting module, the back surface of the mounting includes a recessed surface portion which surrounds the heat dissipation portion, the recessed surface portion having a size corresponding to the small diameter portion, the mounting has two insertion holes in an area of the small diameter portion other than the area for disposing the support, the two insertion holes being openings formed through the main surface and the recessed surface portion, lead wires are inserted through the two insertion holes, the lead wires connecting the drive circuit and the light-emitting module, and the two insertion holes have an inside diameter greater than an outside diameter of the lead wires.