Abstract: A heat sink assembly for mounting an LED module to a surrounding main heat sink member is disclosed. The heat sink assembly has a first plate with inner and outer faces and a peripheral edge. The assembly further includes a second plate that is movable with respect to the first plate and has inner and outer faces and an inwardly-tapered peripheral camming surface. Also included in the assembly is an expandable ring sandwiched between the first and second plates. The ring has an inward peripheral edge that engages the camming surface and an outward heat-transfer surface. The ring is expandable beyond the peripheries of the first and second plates. The heat sink assembly also has a sandwiching-device that adjustably interconnects the first and second plates such that sandwiching of the ring facilitates heat-transfer engagement of the heat-transfer surface with the main heat sink member.

Abstract: A bollard luminaire comprising a ground-mountable tubular vertical housing having a base portion and an upper portion, an annular lens member atop the housing in substantial axial alignment therewith, an upper reflector at the top of the lens member directing and reflecting light through the annular lens member, the housing and lens member being configured and the upper reflector positioned such that it receives upwardly directed light from below, and an LED module inside the base portion of the housing, the LED module being substantially centrally positioned, oriented for upward light emission, and having LED/optical-element sets themselves providing substantially vertically collimated light. In preferred embodiments, the housing is light-transmissive.

Abstract: In an embodiment of a light fixture support assembly for securing a light fixture to a fixed surface, the assembly includes a fixture-support member and a surface-attachment member. The fixture-support member has proximal and distal ends and also includes walls defining a compartment and further defining a first opening at the proximal end of the fixture-support member for communication with the surface-attachment member. The walls further define a second opening for communication with the light fixture. The fixture-support assembly also has a neck portion extending from the proximal end and the neck portion has a flange portion extending from it. The surface-attachment member includes a proximal end attached to the fixed surface and a distal end configured to engage the neck portion, whereby the fixture-support member is supported by the surface-attachment member when the neck portion is inserted into the fixture-support member.

Abstract: The inventive directionally-adjustable LED spotlight is comprised of a fixed heat sink and an LED-array-bearing structure. The LED-array-bearing structure is adjustably attached in a heat transfer relationship to the fixed heat sink.

Abstract: A bollard luminaire comprising a ground-mountable tubular vertical housing having a base portion and an upper portion, an annular lens member atop the housing in substantial axial alignment therewith, an upper reflector at the top of the lens member directing and reflecting light through the annular lens member, the housing and lens member being configured and the upper reflector positioned such that it receives upwardly directed light from below, and an LED module inside the base portion of the housing, the LED module being substantially centrally positioned, oriented for upward light emission, and having LED/optical-element sets themselves providing substantially vertically collimated light. In preferred embodiments, the housing is light-transmissive.