A lighting system is disclosed herein. The lighting system can include light module for surface, recessed or pendant mounting. The module can include a channel having side walls and an open top and can extend between first and second ends. The module can also include an array of light emitting diodes disposed in the channel and a driver for controlling the light emitting diodes. The module can also include a lens mountable in the open top and a cap selectively engageable with at least one of the first and second ends. The cap can be removed from one of the ends when the module is interconnected with a second light module. The system can also include any one or more of a linking bracket, a positioning bracket assembly, tools for assembling the lens to the channel, and a control module.

An integrated ceiling device includes a housing retaining an electronic assembly, a heat sink having a central opening, a light source coupled onto the heat sink, the housing is coupled with and disposed at least partly above the heat sink, and a central vertical axis of the housing aligns or is in proximity with the central opening of the heat sink.

An integrated ceiling device includes a housing retaining an electronic assembly, a heat sink having a central opening, a light source coupled onto the heat sink, the housing is coupled with and disposed at least partly above the heat sink, and a central vertical axis of the housing aligns or is in proximity with the central opening of the heat sink.

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 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.

Disclosed is an automatically adjustable shadowless operating lamp. The automatically adjustable shadowless operating lamp comprises a telescopic support rod. The telescopic support rod is rotatably connected with a first lighting assembly and a second lighting assembly with a same structure, the second lighting assembly is positioned above the first lighting assembly, and the second lighting assembly moves independently with the first lighting assembly; the first lighting assembly comprises a first adjusting part, the first adjusting part is rotationally connected with the telescopic support rod, and is hinged with an adjusting rod through an adjusting piece, a tail end of the adjusting rod is fixedly connected with a second adjusting part, and the adjusting rod is hinged with an operating lamp through the second adjusting part.

Disclosed is an automatically adjustable shadowless operating lamp. The automatically adjustable shadowless operating lamp comprises a telescopic support rod. The telescopic support rod is rotatably connected with a first lighting assembly and a second lighting assembly with a same structure, the second lighting assembly is positioned above the first lighting assembly, and the second lighting assembly moves independently with the first lighting assembly; the first lighting assembly comprises a first adjusting part, the first adjusting part is rotationally connected with the telescopic support rod, and is hinged with an adjusting rod through an adjusting piece, a tail end of the adjusting rod is fixedly connected with a second adjusting part, and the adjusting rod is hinged with an operating lamp through the second adjusting part.

A lamp installation structure of a ceiling fan has a first base connected to a fixing seat of the ceiling fan and a second base connected to a lamp. The first base is provided with a plurality of positioning members. The second base has grooves and guide rails corresponding to the positioning members for insertion of the positioning members. The guide rails are provided with a plurality of elastic members to elastically press against the positioning members. Thereby, through the positioning members being retained to the guide rails, the lamp installation structure of the ceiling fan has the advantages of quick installation and increased stability of the ceiling fan.

A lamp installation structure of a ceiling fan has a first base connected to a fixing seat of the ceiling fan and a second base connected to a lamp. The first base is provided with a plurality of positioning members. The second base has grooves and guide rails corresponding to the positioning members for insertion of the positioning members. The guide rails are provided with a plurality of elastic members to elastically press against the positioning members. Thereby, through the positioning members being retained to the guide rails, the lamp installation structure of the ceiling fan has the advantages of quick installation and increased stability of the ceiling fan.