| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED lighting device capable of reducing manufacturing cost and management cost by commonalizing parts thanks to unification while still having difference in wattage, such as a large, medium, or small size.SOLUTION: An LED lighting device 10 includes a plurality of lighting units 1a each having a substrate 2, an LED 3a arranged on the substrate 2, and a heat radiation member 4 arranged on a back face of the substrate 2 and having connection portions 4a on its both ends. The LED lighting device 10 is formed by connecting the connection portions 4a of the lighting units 1a to each other. |
