| 摘要 |
A LED lamp includes a housing, a circuit unit, and a cover plate. The housing includes a housing body surrounding an axis and having an opening. The circuit unit is disposed in the housing body, and includes a base plate that has a first plate surface facing the opening in the housing body, and a light emitting unit that is mounted to the first plate surface of the base plate. The cover plate is disposed in the housing body between the base plate of the circuit unit and the opening in the housing body, and is formed with a through hole unit corresponding in position to the light emitting unit of the circuit unit.
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