Lighting device

摘要

A lighting device 100 may be provided that includes: a heat sink 300 including a first heat radiation part 310 and a second heat radiation part 330; a light source module 200 including a substrate 210 disposed on the first heat radiation part 310 of the heat sink, and a light emitting device 230 disposed on the substrate 210; and a power supply unit 400 which is disposed within the second heat radiation part 330 of the heat sink and supplies power to the light source module. The second heat radiation part 330 of the heat sink includes an inner portion 331receiving the power supply unit 400 therewithin, an outer portion 335 enclosing the inner portion, and a first receiver 333 disposed between the inner portion and the outer portion. The first heat radiation part 310 of the heat sink includes an upper portion 311 which is disposed on the inner portion of the second heat radiation part and on which the substrate 210 of the light source module 200 is disposed, and a lower portion 313 disposed in the first receiver 333 of the second heat radiation part. 330