A lighting-junction-box may have sidewalls that bound a cavity. The cavity may be configured to receive an electronic component that is configured to emit light. The sidewalls may be divided into an upper-portion and a lower-portion. The lower-portion may be substantially cylindrical in shape. The upper-portion may be substantially octagonal in shape, except that two of the eight faces may be curved, while the remaining six faces may be flat and planar. The two curved faces may be oppositely disposed from each other. The two curved faces may have holes for receiving carriage-bolts for attaching adjusting-plates to the lighting-junction-box. Below the holes of the two curved faces on the lower-portion may be external-length-gauges to assist with mounting the lighting-junction-box. The adjusting-plates may have slots for receiving the carriage-bolts and to allow for vertical adjustment of the lighting-junction-box with respect to the adjusting-plates.

There are provided an apparatus for mounting a light source in a light fixture and method of assembly of the apparatus. For example, there is provided an apparatus for mounting a light source in a light fixture. The apparatus includes an adjustable fixture including a rail onto which the light source is disposed. The apparatus further includes a spacer disposed perpendicularly to the rail. The spacer also includes a fixture configured to lock the apparatus in a specified configuration that corresponds to a depth of a frame of the light fixture.

A rotating arm structure of a lamp includes a rotating arm body; rotating shaft, arranged on the rotating arm body; rotating shaft base, arranged on an lamp body and being in interference fit with the rotating shaft; the rotating shaft base includes base, being with top surface provided with an arc-shaped groove that is rotationally matched with the rotating shaft, and the base is provided with a limiting structure limiting the axial movement of the rotating shaft; elastic pressing piece, located directly above the arc-shaped groove, and two ends are pressed down and fixed and middle part are bend upward and compresses the rotating shaft on the base. The structure is simple, and the installation is convenient, which can effectively reduce the manufacturing cost while keeping the lamp body stable and smooth.

Mechanical joint system with electrical and/or thermal conduction capability by means of an invisible adjustable hinge that connects and allows rotation of one body respects another one, i.e. a male body and a female body, by the integration of a rigid J-shaped joining part which enters perpendicularly through an access opening on the female face at any rotation position, and whose external end is fixed to the male body. The female body is internally equipped with a brake system that couples, guides and fixes the curved end of the J-shaped joining part and blocks its rotation movement. The J-shaped joining part integrates an electrical and/or thermal conductor that makes this invention of great interest for electronic devices with adjustable orientation, including LED lighting ones.

A ceiling connector assembly for mounting an article includes a ceiling connector configured to present an article-mounting end region below a downward facing ceiling surface, a canopy structure for locating on the mounting end region and configured to cover, at least in part, the mounting end region in a covering position, the canopy structure and the mounting end region each respectively including at least one first mounting structure and at least one second mounting structure, wherein when the first and second mounting structures are configured to enable the canopy structure to be removably mounted on the mounting end region in the covering position.

A light emitting device includes a light emitter, a holding portion that slidably holds the light emitter inside a slide rail for a vehicle, and a light transmissive cover that covers the light emitter. According to a configuration, the cover of the light emitting device prevents a decrease in a communication performance of a signal transmission and reception device in which information on an electronic device is transmitted using an LED, as compared with a related art in which the communication performance decreases due to influence of scattering or shielding a light of the LED, the influence being caused by a grease which is heavily applied inside a slide rail of a vehicle and adheres to the LED.

A light emitting device includes a light emitter, a holding portion that slidably holds the light emitter inside a slide rail for a vehicle, and a light transmissive cover that covers the light emitter. According to a configuration, the cover of the light emitting device prevents a decrease in a communication performance of a signal transmission and reception device in which information on an electronic device is transmitted using an LED, as compared with a related art in which the communication performance decreases due to influence of scattering or shielding a light of the LED, the influence being caused by a grease which is heavily applied inside a slide rail of a vehicle and adheres to the LED.

A system, apparatus, and method for thermal regulation in a tiered rack growth system. A contact heat exchange converter is provided to remove thermal energy of a light fixture for the tiered rack growth system, including a contact thermal exchange cavity defined in the contact heat exchange converter is dimensioned to cooperatively receive an arcuate thermal sink of the light fixture. A circulation conduit communicates a dense medium coolant to remove thermal energy carried by a thermal mass of the contact heat exchange converter.

A system, apparatus, and method for thermal regulation in a tiered rack growth system. A contact heat exchange converter is provided to remove thermal energy of a light fixture for the tiered rack growth system, including a contact thermal exchange cavity defined in the contact heat exchange converter is dimensioned to cooperatively receive an arcuate thermal sink of the light fixture. A circulation conduit communicates a dense medium coolant to remove thermal energy carried by a thermal mass of the contact heat exchange converter.

A luminaire featuring a light diffusing housing assembly with a batwing style catadioptric lens element with properties capable of producing a more uniform field of illumination in concert with a secondary diffusing lens element and optional internal light reflecting elements to maximize light output from a point light source including an LED, or a plurality of individual point light sources including an LED strip or LED array and other source of linear chromatic light or linear illumination sources including a light bar, fluorescent lamp, compressed-gas discharge tube and the like.