Retainer ring and associated methods for quiet-ceiling light fixtures

A method of field reconfiguring a light fixture, comprising:

• coupling an optical component with a light engine of the light fixture, by engaging one or more coupling features of a retainer ring, with corresponding coupling features of a light source housing of the light engine;
• wherein the retainer ring comprises:
• a cylindrical main body section that defines a cylindrical axis,
• an inner retaining flange that extends radially inward from a distal end of the main body section, the inner retaining flange extending substantially about a circumference of the distal end, and
• the one or more coupling features, extending radially inward from the retainer ring;
• and wherein the cylindrical axis of the retainer ring is coincident with an optical axis of the light source housing, when the one or more coupling features engage with the light source housing.

A method of field reconfiguring a light fixture that is mounted within an aperture of a surface, comprising:

• disengaging from the surface at least one spring clip that retains a housing of the light fixture within the aperture;
• removing the housing from the aperture;
• decoupling a first light engine from the housing;
• electrically decoupling the first light engine from a power supply;
• electrically coupling a second light engine with the power supply;
• coupling the second light engine with the housing;
• replacing the housing into the aperture;
• and
• re-engaging the at least one spring clip with the surface to retain the housing within the aperture.