Provided is a lighting device. The lighting device includes a light emitting diode (LED) printed circuit board (PCB) on which LED devices for emitting light are disposed, the LED PCB controlling an operation of each of the LED devices, a converter PCB for supplying power into the LED PCB, a housing having a space in which the LED PCB is accommodated, the housing having a heat dissipation structure, a communication module disposed under the LED PCB, the communication module allowing the lighting device to communicate with an external device, and a signal receiving unit connected to the communication module, the signal receiving unit being disposed on the LED PCB. The LED PCB may have a through hole through which an upper end of the communication module passes, and the signal receiving unit is coupled to the upper end of the communication module passing through the through hole.