Abstract: Provided herein is a structure for supporting a light source. The structure may include a housing having a first longitudinal end and a second longitudinal end, with a cavity defined within the housing extending along a portion of a longitudinal length of the housing from the first longitudinal end. The structure may include a surface extending across the second longitudinal end, where the surface includes a light source receiving area, and an opening defined from the light source receiving area through the surface and opening to the cavity. A light source driving circuit may be received within the cavity and including at least one electrical connection extending from the light source driving circuit, through the opening to the light source receiving area. The light source receiving structure may be received within the flashlight. The housing may be cylindrical and may include a threaded exterior surface at the first longitudinal end.