| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting equipment capable of accurately indicating lifetime of the lighting equipment itself to a user from a progressing condition of deterioration with the passage of time of a circuit board or the like. SOLUTION: An opening 1a is installed at a body 1 so that a user can directly see discoloration condition of an electric component arranged in the body 1. A part of the electric component is protruded or exposed from the opening 1a outside of an equipment case. COPYRIGHT: (C)2009,JPO&INPIT
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