To provide a light source assembly that does not use a printed circuit board and can be manufactured at a low cost even when produced in small quantities, a light source assembly according to the present invention comprises a plurality of light sources and a connective conductor structure extending in a direction of arrangement of the light sources to join the light sources, wherein the connective conductor structure is formed by cutting off parts of a substantially plate-like patterned conductor as required, the patterned conductor being provided with a prescribed pattern. Thus, by changing the parts to be cut off in the patterned conductor, it is possible to manufacture light source assemblies having various light source connection patterns in a single manufacturing line, allowing efficient and low cost manufacture of the light source assemblies to be achieved even when the light sources are manufactured in small quantities.