| 摘要 |
In a recessed lighting fixture intended to be laid onto horizontal flanges of inverted T-shaped rails of a grid-type ceiling, the rails having a stem with a bulb defining shoulders below the upper edge of the stem, the fixture having a housing with metal end plates, a hook is formed integrally with one of the end plates. The hook extends across and embraces the bulb. The hook is either formed with a nose projecting in a direction toward the end plate and beneath a shoulder defined by the bulb, or a tab, integral with the end plate, is provided that has a free upper edge projecting from the end plate toward and beneath a shoulder facing the end plate.
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