| 摘要 |
Mounting arrangement (50) includes clamping arrangement (50), or keying arrangement (60), or both. Clamping arrangement (50) includes fixed clamp member (52) and movable clamp member (54) that is movable towards and away from fixed clamp member (52) and is biased (58) towards fixed clamp member (52), so as to grip mounting rail (200) therebetween. Keying arrangement (60 ) employs interchangeable keying members (62) that may be disposed in recess (42) and that may have different keying features (64) for use with different mounting rails. Circuit structure (300, 300') for light (10) includes first and second circuit portions (310, 330) in different planes, first circuit portion (310) having a peripheral shape corresponding to the shape of mounti ng surface(48), and second circuit portion (330) including switch (106) for selectively energizing light source (360). |
