A refrigerator apparatus includes a case opening passing through an inner case; and an lighting device in the opening, wherein the device includes: a lamp case having a cavity defined therein; a light-emitting unit accommodated in the cavity, wherein the light-emitting unit is disposed more outwardly than the case opening, wherein the light-emitting unit irradiates light toward an inner surface of the cavity; a cover coupled with the lamp case to cover the case opening, wherein light from the light-emitting unit is reflected from the cavity through the cover toward the refrigerator interior space; and a reflection portion formed on the cover, wherein the reflection portion is configured to allow light from the light-emission unit directed toward the case opening to be redirected toward the inner surface of the cavity.