An electronic module group can include an electronic module including a first housing defining a housing cavity; a power supply driving module positioned within the housing cavity; and a first concentric terminal connected in electrical communication with the power supply driving module by a first wire and a second wire; and a second concentric terminal rotatably connected in electrical communication with the first concentric terminal, the second concentric terminal configured to transmit power to the first concentric terminal.

An electronic module can include a first housing defining a housing cavity, the first housing defining a first end and a second end positioned opposite from the first end, the first end defined by a shaft of the first housing, the shaft defining external threading, the first housing defining a housing opening to the housing cavity at the second end; an LED lamp board positioned within the housing cavity, the LED lamp board configured to emit light through the housing opening; a power supply driving module positioned within the housing cavity at least partially between the LED lamp board and the shaft; and a first concentric terminal connected in electrical communication with the power supply driving module, the first concentric terminal extending at least partially through the shaft, the first concentric terminal configured to rotatably connect in electrical communication with a second concentric terminal.

A lamp module group can include a housing defining a first housing end and a second housing end, the housing defining a first protruding column at the first housing end, the housing defining a cavity with a housing opening to the cavity defined at the second housing end and a column opening to the cavity defined by the first protruding column; an LED lamp board positioned within the cavity, the LED lamp board configured to emit light through the housing opening; a power supply driving module positioned within the cavity between the LED lamp board and the first protruding column, the power supply driving module connected in electrical communication with the LED lamp board; and a concentric terminal extending through the column opening, the concentric terminal connected in electrical communication with the power supply driving module.

A lighting apparatus includes a fixing unit, a lamp body, a base housing and multiple elastic units. The fixing unit has a central hole. The lamp body includes an inner semi-sphere housing, a rotation shaft and a light source. The base housing includes an external semi-sphere housing and a rotation connector. The rotation shaft is coupled to the rotation connector for the lamp body to rotate with respect to the base housing along a first rotation axis of the rotation shaft. The multiple elastic units are attached to the base housing. The multiple elastic units are elastically attached to the central hole for the base housing to rotate with respect to the fixing unit along a second axis. There is a tilt angle between the first rotation axis and the second rotation axis.

In a first aspect of the subject invention, a solid state HID canopy light fixture retrofit assembly is provided which includes: an inner panel; and, a plurality of edge members perimetrically bounding the inner panel. Each of the edge members includes: a first edge panel secured to the inner panel; a downwardly angled second edge panel depending from the first panel; and, a flange extending from the second edge panel. The first and second edge panels are each sized sufficiently to support thereon at least one board containing a plurality of solid state light generating elements. The inner panel and the edge members collectively define a contained volume sized to accommodate at least one driver for electrically powering the solid state light generating elements. The subject invention provides an assembly which is readily useable to retrofit HID canopy light fixtures from ballasted HID lighting to non-ballasted solid state lighting.

To provide an electric light bulb type light source apparatus capable of reducing backlash, which results in noise, and improving the sound quality of a speaker. The electric light bulb type light source apparatus may include a speaker, a light source unit, a supporting unit, a casing, and a base. The supporting unit may support the speaker. The supporting unit may include a base portion. The base portion may include a tapered surface and a supporting surface that supports the light source unit. The casing may include an abutting surface that abuts against the tapered surface of the base portion. The base maybe used for supplying a power to the light source unit and the speaker.

Apparatus and method provide underwater lighting to illuminate a site within a body of water in which underwater lighting apparatus is immersed during a lighting cycle. A housing is constructed of a heat-conductive material and LED arrays are affixed to the housing, within a sealed chamber, to conduct heat from the LED arrays to the housing such that heat generated by the LED arrays during the lighting cycle will be conducted directly to the housing and dissipated by the housing to the surrounding body of water. Light provided by the LED arrays is passed through corresponding lens members located for directing light in different directions. At the same time, fouling by marine organisms is resisted.

Provided is a light fixture comprising: a) a body, the body having a central portion and two side portions, each of the two side portions situated on one side of the central portion, the two side portions and the central portions running parallel to each other, the central portion recessed in an upward direction in relation to the two side portions, the recess of the central portion forming a ballast room inside of the body; b) two end caps, each end cap attached to an end of the body; c) a plurality of LED (light emitting diode) boards attached to an inside of the side portions of the body; d) one or more ballasts inside of the ballast room; e) a ballast room cover for covering the ballast room; and f) two rectangular-shaped lenses, each lens covering the LED boards attached to the side portion of the body. Each lens can contact the body on one of its long sides and contact the ballast room cover on its other long side.

A recessed lighting fixture comprises a generally annular body having a central cavity in the form of a partially spherical socket. There is a lighting support member having a partially spherical exterior portion which is closely fitted within the partially spherical socket of the annular body. The lighting support member is pivotable relative to the annular body, but air flow between the partially spherical socket of the annular body and the partially spherical exterior portion of the lighting support member is substantially restricted. There may be a light source mounted to the lighting support member adjacent a bottom thereof. The light source may be a light-emitting diode.

A light-emitting device comprises a casing including an upper surface portion having one or more first through holes, and a front surface portion having an opening; a transparent member that closes off the one or more first through holes; one or more light-emitting elements that face the one or more first through holes, respectively, within the casing; and a lid member provided so as to close off the opening, wherein the casing is integrally formed using one material.