| 摘要 |
A mounting arrangement (50) for a light (10) mountable on a mounting rail (200) comprises a light body (40) containing a light source (360), a source of electrical energy (149) and a switch (32) for selectively coupling the light source (360) and the source of electrical energy (149) in circuit for producing light. First and second clamp members (52, 54) are movable closer together for clamping a mounting rail (200) and farther apart for releasing the mounting rail. The light body (40) has a recess (41) between the first and second clamp members (52, 54). A keying member (62) is removably disposed in the recess (41) and has a keying feature (64) that engages a keying feature (208) of the mounting rail (200) when the light body is clamped to the mounting rail by the first and second clamping members (52, 54). The light (10) is mountable on mounting rails having keying features of different sizes and shapes, the keying member (62) being selected from a set of keying members for having a keying feature of a size and shape that corresponds to the size and shape of the keying feature of the mounting rail. |
