LUMINAIRE AND ILLUMINATION EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To provide a luminaire and illumination equipment that can suppress growth in size while enhancing heat radiation performance.SOLUTION: In a luminaire 10, three transistors M1 to M3 are implemented at positions (front end portion) away from a first light source portion 2A on the upper surface of a circuit board 100 while sandwiching a second light source portion 2B and a third light source portion 2C. The temperature increase of light emission diodes 201 to 209 of the first light source portion 2A can be more greatly suppressed, and the heat radiation performance of the transistors M1 to M3 can be more greatly enhanced as compared with a case where the first light source portion 2A is disposed at a near side to the transistors M1 to M3, the growth in size of the circuit board 100 can be more greatly suppressed as compared with a case where the first light source portion 2A is disposed at a near side (front end side) to the transistors M1 to M3 on the upper surface of the circuit board 100.SELECTED DRAWING: Figure 2