LUMINAIRE, LIGHTING DEVICE AND SUBSTRATE UNIT DEVICE

摘要

PROBLEM TO BE SOLVED: To improve assemblability of a luminaire.SOLUTION: A luminaire includes: a cylindrical body 10 having an opening part at one end; a light source unit 20 that has a light source, and a frame covering the opening part; and a lighting device 30 that is arranged inside the body, and configured to supply power to the light source. The lighting device 30 has a rectangular parallelepiped shape. The lighting device 30 is arranged across the center of the body in a view from the opening part. The lighting device 30 is arranged so that a long side and a short side exist in the view from the opening part, and between a side surface 353 on which the long side of the lighting device 30 exists and the inner peripheral surface of the body, a luminaire attachment work space 70 is provided.SELECTED DRAWING: Figure 3