| 摘要 |
PURPOSE: A ceiling built-in type lighting device is provided to facilitate an installation by integrating a light source, a housing, and a heat radiation member in a ceiling. CONSTITUTION: A light emitting unit emits light. A heat radiation unit delivers heat which is emitted from the light emitting unit. A flange part is extended from the end part of the light emitting unit to the outside. An elastic body (130) supports a lamp main body (110) in a lamp hole. A housing (150) covers the heat radiation unit. |
