Systems and methods for collapsible lighting fixtures are disclosed. In aspects, a horticultural luminaire 100 has first and second light fixtures 110, 120 coupled in movable relation between storage and deployed positions by a coupling element 130 applying a retarding torque. Coupling element can be coupling shaft 250 providing friction, or friction hinge cartridge 260. In aspects, hinge 130 has ledge surfaces 218, 228 adjacent rotational hinge faces 216, 226 and extending transverse the rotational plane. In aspects, a horticultural luminaire has an articulated cableway extending through hinge 130 coupling light fixtures 110, 120 and guiding a cable entering from the exterior into cable passageways in light fixtures 110, 120, thereby lessening a cable pinch point during rotation and deployment.