| 摘要 |
The present invention relates to a housing structure of a lamp, which includes a square base board and a plurality of sidewalls. The sidewalls extend upwardly from a periphery of the base board, and connect with each other. The sidewalls each have at least a tongue at one side thereof, and a concave at an opposite side thereof. The adjacent sidewalls are connected together by the tongue of one sidewall engaging in the concave recessed inwardly from an outer surface the other sidewall. A spot welding is applied to each of the tongues.
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