A light source module includes a ceramic circuit board having a predetermined conductive pattern, a semiconductor light emitting element arranged on said ceramic circuit board and connected to the conductive pattern, and an attachment for power feeding bonded to the ceramic circuit board. The attachment for power feeding is provided with a power feeding part connected to an external power source, a plate-shaped part adjacent to a position opposed to an outer circumferential surface of the ceramic circuit board, and a power feeding terminal formed in plate shape and protruded from the plate-shaped part to a side of the ceramic circuit board. The top of the power feeding terminal is connected to a part of the conductive pattern with the top overlapped from a thickness direction. The power feeding terminal of the attachment for power feeding is fixed and connected to the conductive pattern of the ceramic circuit board.