A reflector and of a holding-plate slidingly attach to each other to form a flangeless trim assembly. The reflector may be removably attached to a spackle-frame. The spackle-frame may be installed within ceiling drywall around a hole for a downlight. The holding-plate may be attached to a lighting module. In a default resting configuration, a top of the reflector butts up against a bottom of the holding-plate because springs push these two parts towards each other. When an opposing force is applied that is greater than the spring's force, then a variable gap is formed between the reflector and the holding-plate, but while the reflector and the holding-plate are still attached to each other. This gap may be used by human finger(s) to both disengage the reflector from the spackle-frame and to pull down the reflector, the holding-plate, and the lighting module from the spackle-frame—all without tools.

An overall-assembly of a downlight, with a flangeless trim, and a spackle-frame have complementary structures for repeatably attaching or detaching the downlight to the spackle-frame merely by pushing the downlight into a central hole of the spackle-frame and without use of any external / separate tools. The flangeless trim has some upward protruding members that are configured to removably attached / detached to clips and housings-for-clips. The clips are housed within the housings-for-clips. And the clips and the housings-for-clips are retained in structures of the spackle-frame. The spackle-frame would typically be permanently installed within an appropriately sized hole in drywall (or the like), such as, but not limited to, ceiling drywall. In this way, such downlights may be readily installed or removed and all without use of external / separate tools.

A configurable lighting assembly for use in suspended ceiling grid systems which provides novel T-Bar mounting options. The lighting assembly comprises two configurable length linear lighting modules in a novel parallel arrangement. End plates support, and enclose longitudinal ends of the elongate body of each linear lighting modules and are used to set a configured width and functional gap spacing of the linear lighting modules. The end plates further connect and support the lighting assembly when fixed or mounted or removably to T-Bars positioned at either or both perpendicular and parallel alignment angles.

Lighting assemblies with various embodiments of end plates and linear lighting modules are presented, each with novel mounting characteristics. In some cases the lighting assembly mounts perpendicularly on its end and spans the gap between two T-Bars. In other cases the lighting assembly mounts longitudinally on a single T-Bar. Finally, embodiments are shown where the lighting assembly mounts both perpendicularly and longitudinally to different T-Bars in a ceiling grid layout.

The lighting assembly further comprises a novel arrangement of LED light sources, transmissive optical elements, light shaping lenses, reflectors and other functional components supported and housed within the elongate body of each linear lighting module. The transmissive optical elements may be backlit or edgelit from one or two sides and aligned horizontally or tilted relative to the ceiling grid plane. The lighting assembly can provide a range of useful symmetric, asymmetric and tilted non-lambertian lighting distributions.

A lighting fixture includes a housing, a first light source, a light guide plate, and a second light source. The housing has an inner cavity and a mounting hole, the mounting hole communicates the inner cavity with an external environment of the housing, the light guide plate is installed in the mounting hole. A side of the light guide plate faces the inner cavity, the other side of the light guide plate faces an outside of the housing. The second light source projects second light to the light guide plate, the second light is capable of being projected to the outside of the housing through the light guide plate. The first light source projects first light, and is configured such that the first light is projected to the outside of the housing through the light guide plate, and the housing is a non-light-transmitting housing.

A trim accessory and method of its use that attaches or retrofits to an existing recessed light fixture, and directs or restricts emitted light from the lighting fixture to areas or locations desired by the end user. The trim accessory attaches to the trim, and has a tapered annular panel with an outer surface, an inner surface, an outer edge, an annular inner portion, and one or more retainers along the annular inner portion that retain an outer periphery of the outer-extending trim of the recessed lamp, to secure the trim accessory against the ceiling or other surface using the recessed lighting fixture. The tapered annular panel extends outwardly and upwardly against the ceiling, to blend visually into the undersurface of the ceiling.

A retrofit panel for a ceiling-mounted light fixture. The panel may comprise a lens, screen, diffuser, or LED light screen. Anchor line assemblies and retainer arm assemblies extend from a perimeter guide track from which they extend. The anchor line assemblies engage one or more ports on the light fixture housing and hold the retrofit panel a maximum anchor distance from the housing. The retainer arm assemblies engage one or more openings on the light fixture housing and hold the retrofit panel flush with the light fixture housing or the ceiling if recess mounted. The retrofit panel can be easily installed in existing ceiling mounted light fixtures with minimal demolition.

Inventive methods and apparatus for providing a surface mounted electrical device whereby at least one stem is employed which provides both an electrical connection to a power source as well as the means for mounting. One example of such an electrical device is a ceiling surface-mount luminaire that gives the appearance of a recessed luminaire without requiring the material and cost of a recessed housing. The disclosed invention reduces product cost and increases speed and ease of installation.

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.

A lighting apparatus includes a first conductive unit, an installation bracket, a second conductive unit, a light body and a top cover. The first conductive unit is used for connecting to an external power source. The installation bracket is fixed to an installation platform. The first conductive unit is disposed on a first side of the installation bracket. The top cover is used for disposing the second conductive unit and the light body. The top cover is detachably connected to the installation bracket from a second side of the installation bracket.

A recessed downlight fixture and method for installation is provided. The recessed downlight fixture can be installed in a retrofit application, after a ceiling is installed, through a pre-existing opening in that ceiling. Alternatively, a recessed downlight fixture according to a second embodiment can be installed before a ceiling is present. In either embodiment, the light source coupled to, for example, a heat sink, can be universally moved in three degrees of movement, rotationally, along a tilt axis, or further within the ceiling to increase or decrease the recess. All such universal adjustments can take place through and below the ceiling opening during or after installation.