CPC F21S 8/026 (2013.01) [F21V 17/06 (2013.01); F21V 19/02 (2013.01); F21V 29/507 (2015.01); F21Y 2105/18 (2016.08); F21Y 2115/10 (2016.08)] | 16 Claims |
1. A method of installing a downlight assembly in a ceiling opening, the method comprising:
inserting a collar in the ceiling opening, the collar comprising;
a cylindrical sleeve;
a flange structure outward around a bottom edge of the sleeve for abutting against an underside of the ceiling;
a first circular shoulder about the interior of the sleeve, the shoulder including bores for receiving threaded fasteners;
at least two feet disposed within recesses in an exterior of the cylindrical sleeve and pivotally coupled to the sleeve by respective ones of the threaded fasteners;
rotating the threaded fasteners to pivot the feet outwards above an upper surface of the ceiling and clamp the ceiling between the feet and the flange structure;
inserting the downlight assembly upwards through the collar to abut against a circular abutment surface disposed about the interior of the sleeve; and
seating a retainer ring assembly against a second circular shoulder inboard of the first circular shoulder, the retainer ring assembly retaining the downlight assembly against the abutment surface.
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