A surface-emitting light source includes: light-emitting modules; a wiring substrate including a base member having a surface at a light-emitting modules side and a rear surface opposite to that, a wiring layer on the rear surface of the base member and including wiring pads being portions of the wiring layer, electrically-conductive members each supplied across corresponding two or more of a plurality of vias in each of the wiring pads, and a covering layer covering the wiring layer and defining openings in each of which a portion of a corresponding one of the wiring pads is exposed; and an adhesive layer between the light-emitting modules and the wiring substrate. Each light-emitting module has an array of light emitting devices. The covering layer defines the openings at locations corresponding to the wiring pads with an area dimension smaller than respective area dimensions of the wiring pads.