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)

A method of retrofitting a plurality of LED bulbs to a fluorescent tube fixture with a ballast, a fluorescent tube receptacle, a reflector housing and a lens comprises: removing the lens from the reflector housing; disconnecting the ballast from a mains power supply line and removing the ballast and the fluorescent tube receptacle from the housing. The mains mains power supply is wired to a plurality of Edison socket light-emitting diode (LED) bulb sockets extending from a body defining an electrical junction box and threading a plurality of LED bulbs into the bulb sockets. The electrical junction box is mounted to the reflector housing. The fixture lens is reinstalled to the housing such that the bulb adapter is received in an enclosure defined by the housing and the lens.

Cable management systems that include a light source, such as a low voltage light source, integrally formed into or mounted to a cable management frame.

A light fixture mounting assembly comprises an extender and a bracket. The extender comprises a junction box end configured to couple to a junction box, a fixture end located a distance from the junction box end, a perimeter wall extending from the junction box end to the fixture end, and a first set of screw holes formed within the junction box end or the fixture end. The bracket comprises a raised portion and one or more flange portions coupled to the raised portion. The one or more flange portions have a second set of screw holes formed therein. The one or more flange portions are disposed against the fixture end of the extender. The raised portion is disposed through an opening formed in the extender, and the second set of screw holes of the bracket is aligned with the first set of screw holes.

An automatic light intensity compensating device of a surgical light includes a suspension or support system and one or multiple light heads carried on the suspension or support system. Each of the light head includes a housing, one or multiple grips mounted to the housing for hand holding and moving the light head to a desired position, one or multiple light sources mounted in the housing for illumination, a focus adjustment mechanism for adjusting the focal length of illumination, a focusing detection mechanism for detecting a position of the focus adjustment mechanism within a variation range, and an automatic illuminance compensation device, which automatically increases or decreases luminance of the light source according to the position of the focus adjustment mechanism.

A linear light fixture assembly for supporting a light fixture in a ceiling structure, comprises a light fixture mounting structure having a pair of opposed boundary regions configured to fit within a designated light fixture receiving region in the ceiling structure, and a plurality of spring elements configured to spaced outwardly from at least one of the boundary regions, each spring element having a mounting region configured to be anchored to the mounting structure and a free end region to extend therefrom and to be laterally outwardly biased in a first position to form a path of contact with a support surface region on the ceiling structure to anchor the structure in the receiving region, each of the spring elements configured to be movable toward the corresponding boundary region in a second position to release the path of contact to release the light fixture from the receiving region.

A retrofit trim lighting device is provided. In example embodiments, the retrofit trim lighting device comprises a bracket comprising an opening; at least one torsion spring secured to the bracket and configured to mount the retrofit trim lighting device within a recessed housing; a retrofit housing comprising at least one light engine; and an engagement element. The engagement element is secured to the retrofit housing through the opening of the bracket such that, when so secured, the retrofit housing and the bracket are rotatable relative to one another.

Disclosed is a grid lighting system having at least one housing segment with at least one lighting zone. At least one lighting module is selected from at least one track lighting module and/or at least one non-track lighting module. The at least one lighting zone extends along a first length dimension of the housing segment and including at least one first passage to receive the at least one track lighting module and/or non-track lighting module. The housing segment includes a first power supply segment to be coupled with a designated line voltage outlet to deliver line voltage power to the at least one lighting module in the at least one lighting zone. Each track lighting module includes a lighting subzone, with a second passage to receive one or more lighting submodules along a second length dimension. A second power supply segment is provided to couple with the first power supply segment to receive line power and to deliver low voltage to the one or more lighting submodules.

The present disclosure provides a lamp for a medical operating area. The lamp includes a mounting assembly and a luminaire sterilization head. The luminaire sterilization head includes a vacuum, a first light source, and second light source. The vacuum generates a gas stream for evacuating a volume of the aerosol through the luminaire sterilization head. The first light source emits a visible light beam for illuminating the target. The second light source emits ultraviolet light waves along the gas stream for disinfecting the biological agent in the evacuated aerosol. The mounting assembly adjusts the separation distance between the luminaire sterilization head and the target of the medical procedure. The mounting assembly adjusts the orientation of the luminaire sterilization head to alter the angle of the visible light beam emitted by the first light source and the gas stream generated by the vacuum.

A modular troffer-style fixture particularly well-suited for use with solid state light sources. The fixture comprises a reflector that includes parallel rails running along its length, providing a mount mechanism and structural support. An exposed heat sink is disposed proximate to the reflector. The portion of the heat sink facing the reflector functions as a mount surface for the light sources. The heat sink is hollow through the center in the longitudinal direction. The hollow portion defines a conduit through which electrical conductors can be run to power light emitters. One or more light sources disposed along the heat sink mount surface emit light toward the reflector where it can be mixed and/or shaped before it is emitted from the troffer as useful light. End caps are arranged at both ends of the reflector and heat sink, allowing for the easy connection of multiple units in a serial arrangement.