| 摘要 |
A lamp device includes: a substrate; a light emitting element mounted on the substrate; a heat transfer body having a peripheral wall portion having one end expanding toward another one end, the substrate being attached to an inner surface of the one end of the heat transfer body; a plurality of heat radiation fins disposed at the another one end of the peripheral wall portion of the heat transfer body; a cover attached to the one end of the heat transfer body; a base mounted to one end of the cover; and a lighting circuit disposed inside the cover and adapted to trigger light emission of the light emitting element. A lighting apparatus is composed of a lighting apparatus housing, a socket disposed in the lighting apparatus housing, and a lamp device of the structure mentioned above.
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