In an example embodiment, a lighting fixture comprising a lighting device and a mounting bracket is provided. The lighting device comprises a front cover, a back cover, a frame, and at least one LED mounted within the interior of the lighting device. The frame has an interior edge that is in contact with a perimeter of the front cover and a perimeter of the back cover. The front cover, the back cover, and the frame define the interior of the lighting device. At least one of the frame and the back cover comprises one or more attachment mechanisms. The mounting bracket comprises a junction box mounting element configured for securing the mounting bracket to a junction box or a mounting surface, and one or more attachment mechanism mating elements configured to mate with the one or more attachment mechanisms when the lighting device is rotated within the mounting bracket to secure the lighting device into the mounting bracket.

The invention relates to a mounting device (1) for mounting holding rails (4a, 4b) for lamp housings to cut-outs (3) of suspended walls or ceilings, comprising a substantially rigid frame (15) and, connected thereto, a first holder (2a) for retaining a first holding rail (4a) and a second holder (2b) for retaining a second holding rail (4b), wherein the holders (2a, 2b) are designed to hold the holding rails (4a, 4b) parallel to and at a defined distance from each other. The invention further relates to a mounting system, comprising a mounting device (1) according to the invention and at least two holding rails (4a, 4b)

In a dropped ceiling assembly system elements are provided which include an elongate planar shelf held below an elongate spine. The shelf has lateral edges which can support edges of a ceiling tile resting thereon. This spine is configured to be held in position either adjacent to spines of other elements within a dropped ceiling or from above, such as by suspension wires passing through suspension holes in the spine. A compartment is provided on an underside of the shelf which is sized and shaped to receive and hold at least a portion of a loudspeaker therein. The loudspeaker mounting system is thus integrated into the shelf which also acts to hold ceiling tiles within a dropped ceiling.

A hanging three dimensional grid system for lighting, data, and power equipment that can be used to position equipment above the user and away from or otherwise off the surface of their work area for optimum productivity. The grid system may include both manual and motorized lifters, so that the grid system may be raised or lowered for maintenance and configuration changes. Clamps hold equipment and move along the tubing for optimum equipment placement, and motorized equipment lifters raise and lower devices to/from the work area. For the motorized lifters, software is included that communicates with the device across internet connections and gives users the ability to reconfigure their work area remotely, without touching the device.

An arrangement for ventilating a room contains a supply air duct arranged above an aisle region for delivering air into a room and, arranged above the supply air duct, an exhaust air duct for discharging exhaust air. The supply air duct contains two lateral air delivery portions which extend along the aisle region and each contain air outlet openings from which the supply air exits laterally. A substantially airtight central separating portion separates the first and the second air delivery portions from one another. The exhaust air duct contains two slot-like suction openings which extend substantially parallel to the supply air duct and are arranged in the ceiling such that there is formed on both sides of the aisle region a rolling air flow via which supply air heated in the region of work tables passes in a vertical direction into the region of the ceiling.

The invention relates to a profiled section (10) for temperature-control of a room, said section having a receiving portion (20) for a piping system positioning aid (60), a sealing surface (15), formed at least at the side of the receiving portion (20), and at least one first support (30) for a sealing panel (200), the first support (30) being formed at the side of the receiving portion (20) and pointing in the opposite direction to the sealing surface (15). The invention also relates to a building element assembly (100) comprising a profiled section (10) of this type and to an associated use.

A lighting assembly is provided that includes a light fixture in combination with a support grid such as a drop ceiling t-bar. The light fixture can be configured to use a t-bar as the main form of support. The light fixture can be push-fit onto a t-bar or use a clip to join two or more portions of the light fixture to an installed t-bar. Once attached to the T-bar, the light fixture itself can provides support for a ceiling tile. Various embodiments are provided which achieve a variety of light distributions useful in typical illumination applications. Both recessed and suspended fixture types are achieved in various embodiments which are particularly well suited for LED lighting.

A system for supporting a non-structural building component beneath a soffit of a building. The system has a plurality of suspension assemblies that each have a first elongate non-rigid member, and at least one second elongate non-rigid member. The first elongate non-rigid member is secured at an upper end to a structural portion of the building at a first location, and at a lower end to one of: the non-structural building component, or a support member to which the non-structural building component is secured. The second elongate non-rigid member that is secured at a lower end to one of: the non-structural building component, or the support member to which the non-structural building component is secured, and at an upper end to a structural portion of the building at a second location. The first elongate non-rigid member is oriented substantially vertically. The second location is horizontally spaced from the first location, such that the second elongate non-rigid member is inclined to vertical. When the building is in a stable condition, the tensile force in the first elongate non-rigid member is greater than the vertical component of the tensile force in the second elongate non-rigid member.

A ceiling grid lighting assembly for use in suspended ceiling systems is provided with multiple linear lighting modules in parallel arrangement. End plates are used to connect, support, and enclose longitudinal ends of the elongate body of each linear lighting modules while simultaneously functioning as reflective faces for optical cavities. A configured gap spacing between individual linear lighting modules can be used to house and support components such as additional light sources, acoustic or decorative panels, HVAC components, or power systems, controls or sensors. The end plate can also be configured to allow a T-bar to be placed in the configured gap spacing thereby enabling the mounting of the assembly in-line upon the longitudinal axis of a ceiling grid T-bar. Embodiments of linear lighting modules are presented comprising LED light sources, light guides and diffusers housed within the elongate body. The light guides may be edgelit from one or two sides and aligned horizontally or tilted relative to the ceiling grid plane.

A ceiling element including a base adapted to be mounted in a ceiling of a room, thereby defining a room space under the base and a ceiling space above the base, is provided. The ceiling element includes a battery container adapted to receive a battery and arranged at the base such that it is located in the ceiling space when the ceiling element is mounted in the ceiling. The ceiling element further includes a conduit arranged to convey air between the room space and the ceiling space and/or the battery space when a temperature of the room space is different from a temperature of the ceiling space and/or a temperature of the battery container. A method of thermal management of a battery received in a battery container located in a ceiling space is also provided.