In an example embodiment, a lighting fixture comprising a lighting device and a mounting bracket is provided. The lighting device comprises a front cover, a back cover, a frame, and at least one LED mounted within the interior of the lighting device. The frame has an interior edge that is in contact with a perimeter of the front cover and a perimeter of the back cover. The front cover, the back cover, and the frame define the interior of the lighting device. At least one of the frame and the back cover comprises one or more attachment mechanisms. The mounting bracket comprises a junction box mounting element configured for securing the mounting bracket to a junction box or a mounting surface, and one or more attachment mechanism mating elements configured to mate with the one or more attachment mechanisms when the lighting device is rotated within the mounting bracket to secure the lighting device into the mounting bracket.