A down-light fixture including both white-light-emitting diodes (LEDs) and antimicrobial ultraviolet (UV-C) LEDs. The white LEDs are arranged in the fixture so as to illuminate surfaces, e.g., items in a room of a building, when actuated. The UV-C LEDs also are arranged in the fixture so as to disinfect or sterilize the surfaces/items in the same room. The illumination LEDs and the disinfection LEDs are independently switchable “on” and “off,” such that a user can controllably illuminate surfaces and/or objects, or disinfect surfaces and/or objects, or both illuminate and disinfect.
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