An irradiation method includes irradiating an environment with light using one or more one ceiling-mounted light sources, where each ceiling-mounted light source has an optical axis oriented vertically downward, and wherein each ceiling-mounted light source emits a light distribution having more angle-integrated intensity in a higher angular range relative to the optical axis of the ceiling-mounted light source than in a lower angular range relative to the optical axis of the ceiling-mounted light source. A ceiling-mounted light source may include a support structure, one or more light emitters disposed on a surface of the support structure, and a reflector with a funnel-shaped reflective surface facing the support structure and expanding with increasing distance from the support structure along the optical axis. The light emitters may be ultraviolet (UV) light emitters whereby the light source is a UV ceiling-mounted light source.

An electrical outlet mount for externally mounting on a pair of conductive panes or conductive material on a pair of non-conductive panes. The mount is used for powering electrical/electronic elements and can be installed quickly and easily, and which offers an attractive finish with unobstructed view. The electrical outlet mount has a back end and a front end, a first electrical contact element located at the back end arranged for electrical contact with a first conductive panel and a second electrical contact element located towards the front end, in spaced arrangement from the first electrical contact element for electrical contact with a second conductive panel. The electrical outlet mount may extend out through an opening in one of the panels to receive electrical/electronic elements disposed externally to such space.

An electrical outlet mount for externally mounting on a pair of conductive panes or conductive material on a pair of non-conductive panes. The mount is used for powering electrical/electronic elements and can be installed quickly and easily, and which offers an attractive finish with unobstructed view. The electrical outlet mount has a back end and a front end, a first electrical contact element located at the back end arranged for electrical contact with a first conductive panel and a second electrical contact element located towards the front end, in spaced arrangement from the first electrical contact element for electrical contact with a second conductive panel. The electrical outlet mount may extend out through an opening in one of the panels to receive electrical/electronic elements disposed externally to such space.

A lighting fixture includes a light source holder, a pair of position adjustors, and an outer shell. The light source holder holds a light source. The position adjustors are arranged to face each other and interpose the light source holder between themselves and supports the light source holder to allow the light source holder to rotate around a first virtual axis defined as a virtual axis passing through the position adjustors. The outer shell has an opening in which the light source holder and the position adjustors are arranged and supports the position adjustors to allow the position adjustors to rotate around a second virtual axis defined by a normal to an opening plane of the opening. The first virtual axis intersects with the second virtual axis and is located either within or behind the opening plane.

A lighting fixture includes a light source holder, a pair of position adjustors, and an outer shell. The light source holder holds a light source. The position adjustors are arranged to face each other and interpose the light source holder between themselves and supports the light source holder to allow the light source holder to rotate around a first virtual axis defined as a virtual axis passing through the position adjustors. The outer shell has an opening in which the light source holder and the position adjustors are arranged and supports the position adjustors to allow the position adjustors to rotate around a second virtual axis defined by a normal to an opening plane of the opening. The first virtual axis intersects with the second virtual axis and is located either within or behind the opening plane.

The present disclosure provides a breathing structure for a lighting fixture, and a lighting fixture comprising the breathing structure. The lighting fixture includes a lamp body which has an inner cavity. The breathing structure includes: a mounting portion, arranged on the lamp body and protruded from the lamp body; a through hole, formed in the mounting portion, the through hole penetrating the mounting portion and being communicated with the inner cavity of the lamp body; a breathable film, arranged on one end of the through hole facing towards an outside of the lamp body; a washer, arranged on the breathable film and provided with a vent slot; and an elastic fastener, fastened on the mounting portion and configured to compress the washer towards a direction of the inner cavity of the lamp body.

The present disclosure provides a breathing structure for a lighting fixture, and a lighting fixture comprising the breathing structure. The lighting fixture includes a lamp body which has an inner cavity. The breathing structure includes: a mounting portion, arranged on the lamp body and protruded from the lamp body; a through hole, formed in the mounting portion, the through hole penetrating the mounting portion and being communicated with the inner cavity of the lamp body; a breathable film, arranged on one end of the through hole facing towards an outside of the lamp body; a washer, arranged on the breathable film and provided with a vent slot; and an elastic fastener, fastened on the mounting portion and configured to compress the washer towards a direction of the inner cavity of the lamp body.

A lighting module includes a heat sink with a sidewall and a partition defining two cavities, a LED light source disposed in one cavity to emit light, a driver module disposed in the other cavity with driver circuitry to provide electrical power to the light source, and an optical assembly to provide a desired emission profile. The optical assembly is field-changeable and includes a cover lens with snap-fit connectors to facilitate removal and replacement. The optical assembly further includes either a reflector coupled to the cover lens or an optical lens coupled to the heat sink via an optic holder. In some examples, the driver circuitry facilitates dimming of the light source. The heat sink also dissipates heat generated by the light source and the driver circuitry to maintain desired operating temperatures and thereby facilitate increased light output.

A lighting module includes a heat sink with a sidewall and a partition defining two cavities, a LED light source disposed in one cavity to emit light, a driver module disposed in the other cavity with driver circuitry to provide electrical power to the light source, and an optical assembly to provide a desired emission profile. The optical assembly is field-changeable and includes a cover lens with snap-fit connectors to facilitate removal and replacement. The optical assembly further includes either a reflector coupled to the cover lens or an optical lens coupled to the heat sink via an optic holder. In some examples, the driver circuitry facilitates dimming of the light source. The heat sink also dissipates heat generated by the light source and the driver circuitry to maintain desired operating temperatures and thereby facilitate increased light output.

A runway-embedded flash lighting device, including: a body; a ceiling member; a light guide member; and an LED flash light source, wherein the body is configured to be embedded in a runway, the ceiling member is disposed in an upper opening of the body and configured to be exposed to a runway surface when the body is embedded in the runway, the ceiling member includes a flash emission window, the light guide member is disposed in the flash emission window, the LED flash light source is disposed inside the body and configured to emit a flash toward the light guide member, and the light guide member is configured to allow the flash emitted from the LED flash light source to be emitted from the flash emission window to outside the runway-embedded flash lighting device.