Provided is a lighting assembly including an upper body that defines a top surface thereof; a lower body coupled to a lower portion of the upper body and defining a bottom surface thereof; a light diffusion member coupled to the upper body and the lower body, the light diffusion member including a first surface facing the upper body, a second surface facing the lower body, and a third surface that has a curved surface and is exposed to an outside of the light diffusion member; a light guide made of a light transmissive material, the light guide being in contact with the light diffusion member; and a light-emitting diode (LED) disposed to face a surface of the light guide.