| 摘要 |
A substantially L-shaped supporting member 31 is mounted in a slot 67 in a light fixture. Both legs are wider than the slot. Recess 71 which forms a web to connect the legs is slightly wider than the thickness of the fixture wall. The web is narrower than the slot. The support can be rotated 90 DEG when the nut 74 is withdrawn from hole 68 at the end of the slot.
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