LIGHT SOURCE UNIT FOR VEHICLE LAMP, VEHICLE LAMP

The present invention enables further improvement of luminous efficiency of a semiconductor light-emitting element. In the present invention, a mounting member, a substrate, two semiconductor light-emitting elements, and three terminals are configured as a socket which is an integral structure, while a control circuit is configured separately from the socket. As a result, in the present invention, the control circuit is separated from the substrate of the socket, and therefore it becomes possible to further improve the luminous efficiency of the semiconductor light-emitting elements.