Lighting apparatus and substrate having plurality of light-emitting elements mounted thereon and incorporated in this lighting apparatus

摘要

The present invention provides a down light (1) comprising a thermally-conductive main body (2), and a substrate (4) which is mounted on this main body (2) through a plurality of screw (11, 12), has slits (4s) which are formed on straight lines connecting the screw (11, 12) with each other in directions orthogonal to the straight lines, and has a plurality of LEDs (10) arranged thereon.