Abstract: Lighting fixtures having mounting structure openings and coverings are disclosed. According to an aspect, a lighting fixture includes a housing defining space for holding an electronic component for distributing power to one or more light sources. The lighting fixture also includes a mounting structure attached to the housing and configured to at least partially enclose the space for containing the electronic component. The mounting structure defines an opening for accessing the electronic component. Further, the mounting structure is configured to attach to light source(s). The lighting fixture also includes a covering attached to the mounting structure and arranged to cover the opening when attached.