A substrate for mounting a light-emitting element (A1) includes a substrate (10) that is composed of a ceramic(s), a terminal for an element (11a) that is provided on a front surface (10a) of the substrate (10) where a light-emitting element (30) is mounted thereon, a terminal for a power source (12a) that is provided on the substrate (10) where an external power source is connected thereto, and a wiring part (14a) that is provided inside the substrate (10) and electrically connects the terminal for an element (11a) and the terminal for a power source (12a). Furthermore, the wiring part (14a) has a first conductor (15a) that extends in a surface direction of the substrate (10) and a second conductor (16a) that extends substantially parallel to the first conductor (15a) on an opposite side of the front surface (10a) and is connected in parallel with the first conductor (15a).
展开▼
