Patent attributes
Modules, systems and methods that disinfect surfaces using ultraviolet (UV) light are disclosed. In one aspect, a UV light-emitting module comprises an enclosure including an aluminum rear wall comprising a ventilation opening and a face plate spaced from the rear wall and comprising a light-transmitting aperture. Four aluminum sidewalls extend between the rear wall and the face plate, with at least one sidewall comprising a ventilation opening. At least one aluminum UV light emitter support within the enclosure is electrically coupled to plurality of UV light emitters. A thermally conductive and electrically insulating separator is located between the support and the rear wall. At least one electrical conductor extends through the rear wall and the separator into the support, and an electrically insulating bushing extends between the conductor and surfaces of the rear wall.