An illumination apparatus includes a light source unit comprising at least one light source module comprising a plurality of light-emitting device chips and a lead frame on which the light-emitting device chips are mounted and which connects the mounted light-emitting device chips; a diffusion cover having an interior space in which the light source module is accommodated and diffusing light emitted from the light source module; and an installation portion formed adjacent to the diffusion cover to install the light source module.
