Patent ID: 8419240

Claim:
A lighting device comprising: a heat sink which includes one surface, a receiving portion, and a first projection disposed on an outer circumference of the one surface; a light emitting module which is disposed on the one surface of the heat sink; and a cover which is coupled to the heat sink and includes a locking projection coupled to the receiving portion of the heat sink, and includes a recess coupled to the first projection of the heat sink, wherein the heat sink and the cover are limited to separate from each other by the coupling of the locking projection and the receiving portion, wherein the cover is limited to rotate by the coupling of the first projection and the recess of the cover, wherein the light emitting module includes a light emitting diode, and wherein the one surface of the heat sink comprises: a second projection which projects upwardly and includes the light emitting module disposed thereon; and a basal surface portion which surrounds the second projection and includes the first projection.