The present disclosure is directed to in grade light fixtures and recessed luminaires and subassemblies thereof, including, for example, a heat sink and pivot for a recessed luminaire, a gasket for the recessed luminaire, and an outer box and cover for installation of the recessed luminaire. The recessed luminaire comprises: a housing having an internal surface; and a light subassembly engaged with a thermally conductive body, the light subassembly having a first end and a second end, wherein the first end of the light subassembly is pivotally secured to a pivot arranged on, in, or proximate to the internal surface of the housing. The thermally conductive body is in thermal contact with the internal surface of the housing. The recessed luminaire further comprises a dehumidifier.