An ultraviolet light-emitting module for disinfecting one or more components, the UV light-emitting module comprising: an enclosure comprising: a rectangular aluminum rear wall comprising at least one rear wall ventilation opening (352, 353); a rectangular face plate spaced from the rear wall and comprising a light-transmitting aperture; and four aluminum sidewalls (330, 334, 338, 342) extending between the rear wall and the face plate, wherein at least one sidewall of the four aluminum sidewalls (330, 334, 338, 342) comprises a sidewall ventilation opening (348, 349); a plurality of UV light emitters within the enclosure; at least one aluminum UV light emitter support (322, 323, 450) within the enclosure that is electrically coupled to the plurality of UV light emitters, wherein the at least one aluminum UV light emitter support (322, 323, 450) comprises a first aluminum UV light emitter support and a second aluminum UV light emitter support extending parallel to the first aluminum UV light emitter support, the first aluminum UV light emitter support comprising a plurality of triangular-shaped first internal support surfaces, the second aluminum UV light emitter support comprising a plurality of triangular-shaped second internal support surfaces that each face a corresponding first internal support surface of the first aluminum UV light emitter support, wherein each of the triangular-shaped first internal support surfaces and the triangular-shaped second internal support surfaces comprise radiused edges (380, 384) along one or both upwardly extending sides and an apex thereof; a thermally conductive and electrically insulating separator between the at least one aluminum UV light emitter support (322, 323, 450) and the rear wall; at least one electrical conductor (354, 356) extending through the rear wall and the thermally conductive and electrically insulating separator into the at least one aluminum UV light emitter support (322, 323, 450); and an electrically insulating bushing (360, 362) extending between the at least one electrical conductor (354, 356) and surfaces of the rear wall. an enclosure comprising: a rectangular aluminum rear wall comprising at least one rear wall ventilation opening (352, 353); a rectangular face plate spaced from the rear wall and comprising a light-transmitting aperture; and four aluminum sidewalls (330, 334, 338, 342) extending between the rear wall and the face plate, wherein at least one sidewall of the four aluminum sidewalls (330, 334, 338, 342) comprises a sidewall ventilation opening (348, 349); a rectangular aluminum rear wall comprising at least one rear wall ventilation opening (352, 353); a rectangular face plate spaced from the rear wall and comprising a light-transmitting aperture; and four aluminum sidewalls (330, 334, 338, 342) extending between the rear wall and the face plate, wherein at least one sidewall of the four aluminum sidewalls (330, 334, 338, 342) comprises a sidewall ventilation opening (348, 349); a plurality of UV light emitters within the enclosure; at least one aluminum UV light emitter support (322, 323, 450) within the enclosure that is electrically coupled to the plurality of UV light emitters, wherein the at least one aluminum UV light emitter support (322, 323, 450) comprises a first aluminum UV light emitter support and a second aluminum UV light emitter support extending parallel to the first aluminum UV light emitter support, the first aluminum UV light emitter support comprising a plurality of triangular-shaped first internal support surfaces, the second aluminum UV light emitter support comprising a plurality of triangular-shaped second internal support surfaces that each face a corresponding first internal support surface of the first aluminum UV light emitter support, wherein each of the triangular-shaped first internal support surfaces and the triangular-shaped second internal support surfaces comprise radiused edges (380, 384) along one or both upwardly extending sides and an apex thereof; a thermally conductive and electrically insulating separator between the at least one aluminum UV light emitter support (322, 323, 450) and the rear wall; at least one electrical conductor (354, 356) extending through the rear wall and the thermally conductive and electrically insulating separator into the at least one aluminum UV light emitter support (322, 323, 450); and an electrically insulating bushing (360, 362) extending between the at least one electrical conductor (354, 356) and surfaces of the rear wall.