| 摘要 |
A roadway luminaire generally includes a housing and a door pivotably connected to the housing. The housing includes a rear wall having an opening sized and shaped to receive a mounting arm for mounting the luminaire thereto, a top wall extending from the rear wall and an arm receiving channel formed in the top wall adjacent the rear wall for receiving an end of the mounting arm. The channel is formed with a step arrangement having a plurality of steps ascending in order along a length of the channel. The steps permit angular mounting adjustment of the housing with respect to the mounting arm depending on which step the end of the mounting arm rests.
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