Disclosed is a lighting apparatus which may include a heat sink, a light emitting device including a substrate mounted on the heat sink and LEDs arranged on the substrate, a bulb surrounding the light emitting device, an electronic module received within the heat sink to supply power to the light emitting device, a case provided to surround the electronic module, the case being configured to be inserted into the heat sink, a communication module separably coupled to the electronic module, and a power socket electrically connected to the electronic module, the power socket being mounted to the case. The communication module may include a housing, a circuit board provided in the housing. The circuit board may be electrically connected to the electronic module, and a wireless communication device may be provided on the circuit board.