Abstract: An enclosure is arranged for housing electronics associated with a luminaire and includes a first member including a mounting interface arranged to couple the first member to the luminaire and a second member mechanically coupled to the first member. The mounting interface facilitates provisionally coupling the first member to the luminaire and securing the enclosure to the luminaire. A corresponding mounting apparatus for securing an enclosure to a luminaire includes a mounting member having an opening and configured to be secured to a surface of a luminaire and a neck portion extending from the enclosure and configured to pass through the opening. The neck portion includes a neck opening that is configured to allow wiring to be routed from the electronics to the luminaire. The neck portion and the mounting member may include respective complementary surfaces to provide a mounting interface for provisionally coupling the enclosure to the luminaire.

Abstract: A housing 200 for securing a photo sensor 405 where the housing includes a lower body 211 configured to selectively engage a base 203 at one of a multiplicity of angular rotations relative to the base and an upper body 209 configured to hold the photo sensor. In various embodiments, a locking member 205 is disposed, e.g., within a slot 417 in the lower body, and configured to secure the housing to the base in the one of the multiplicity of angular rotations. A corresponding method of providing and aligning a sensor housing is described.