Embodiments herein are directed to a lighting fixture for insertion into a strut channel member. In an installed position, a light source supported by the housing of the lighting fixture is disposed at least partially within an interior volume of the strut channel member. The lighting fixture can be attached to the strut channel member by the lips of the strut channel member. When the lighting fixture is installed in the channel member, light from the light source emanates in a direction out of the channel member through the slot in the channel member. The lighting fixture may be snapped or slid into or out of place in the channel member.