Abstract: An LED light fixture having a light-emitting region and a perimetrical structure therearound. The light-emitting region includes at least one LED-array module supported by an LED heat sink open for air/water-flow. The perimetrical structure has first and second opposite substantially-aligned edge-adjacent portions each extending along the light-emitting region and meeting each other at a perimetrical edge. The first and second edge-adjacent portions converge toward each other at positions progressively closer to the perimetrical edge to form aerodynamic-drag-reducing cross-sectional profiles transverse to the fixture plane and extending in substantially all fixture-plane directions from the intersection of its two major principal axes.

Abstract: An outdoor lighting system utilizing light-emitting diodes (LEDs) and structures to dissipate heat generated by the LEDs. The system includes a tubular enclosure housing an internal LED lighting assembly including LEDs mounted to a finned support structure which extends between two ends of the tube. At the end of the tube is at least one heat dissipating structure which is retained on the tubular enclosure by the threaded fastener. A heat dissipating structure in the form of a finned heat sink having an integrated, formed-in-place gasket abutting the end of the tubular enclosure.

Abstract: A light fixture comprising a chamber, at least one power-circuitry driver within the chamber, at least one LED module outside the chamber, and at least one air gap between the chamber and the at least one LED module, the air gap permitting air/water-flow therethrough. The chamber is defined by a housing. The at least one LED module is on an LED heat sink outside the chamber. The housing defines the air gap permitting air/water-flow to and from the heat sink.

Abstract: A light fixture comprising a chamber, at least one power-circuitry driver within the chamber, at least one LED module outside the chamber, and at least one air gap between the chamber and the at least one LED module, the air gap permitting air/water-flow therethrough. The chamber is defined by a housing. The at least one LED module is on an LED heat sink outside the chamber. The housing defines the air gap permitting air/water-flow to and from the heat sink.

Abstract: An LED lighting fixture including a housing and an LED assembly secured with respect to the housing to permit air/water-flow over the LED assembly. The LED assembly includes a plurality of LED-array modules on an equal plurality of individual heat sinks. The housing defines an air gap permitting air/water-flow to and from the heat sinks.

Abstract: An LED light fixture having a light-emitting region and a perimetrical structure therearound. The light-emitting region includes at least one LED-array module supported by an LED heat sink open for air/water-flow. The perimetrical structure has first and second opposite substantially-aligned edge-adjacent portions each extending along the light-emitting region and meeting each other at a perimetrical edge. The first and second edge-adjacent portions converge toward each other at positions progressively closer to the perimetrical edge to form aerodynamic-drag-reducing cross-sectional profiles transverse to the fixture plane and extending in substantially all fixture-plane directions from the intersection of its two major principal axes.

Abstract: An LED lighting fixture including a housing and an LED assembly secured with respect to the housing to permit air/water-flow over the LED assembly. The LED assembly includes (a) an LED heat sink having an LED-engaging surface and a heat-transfer surface and (b) an LED-array at the heat-transfer surface.

Abstract: An outdoor lighting system utilizing light-emitting diodes (LEDs) and structures to dissipate heat generated by the LEDs. The system includes a tubular enclosure housing an internal LED lighting assembly including LEDs mounted to a finned support structure which extends between two ends of the tube. At the end of the tube is at least one heat dissipating structure which is retained on the tubular enclosure by the threaded fastener. A heat dissipating structure in the form of a finned heat sink having an integrated, formed-in-place gasket abutting the end of the tubular enclosure.

Abstract: An LED lighting fixture including a housing and an LED assembly secured with respect to the housing to permit air/water-flow over the LED assembly. The LED assembly includes (a) an LED heat sink having an LED-engaging surface and a heat-transfer surface and (b) an LED-array at the heat-transfer surface.

Abstract: An LED lighting fixture including a housing including a first and second border structures. An LED assembly is secured with respect to the housing to permit air/water-flow over the LED assembly. The LED assembly includes at least one LED-array module mounted at an elongate LED heat sink that extends along the housing and between two heat-sink ends. The heat sink has an LED-module-engaging surface and a heat-transfer surface. One heat-sink end is at the first border structure and the other heat-sink end is at the second border structure. The housing and the heat sink define an air gap permitting air/water-flow to and from the heat sink.

Abstract: A modular LED unit having a number of LED modules separately mounted on individual interconnected preferably-extruded heat sinks, each heat sink having: a base configured to engage and hold an LED module in place and, in preferred forms, to facilitate the ganging of heat-sink/LED modules; and a plurality of fins, including inner-fins and side-fins, projecting from the opposite surface of the base and extending therealong, the side-fins having interlocking features to facilitate the ganging of heat-sink/module units together and, in preferred forms, to facilitate interconnection of the modular LED unit to other portions of a lighting fixture.

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: An LED lighting fixture including a housing including a first and second border structures. An LED assembly is secured with respect to the housing to permit air/water-flow over the LED assembly. The LED assembly includes at least one LED-array module mounted at an elongate LED heat sink that extends along the housing and between two heat-sink ends. The heat sink has an LED-module-engaging surface and a heat-transfer surface. One heat-sink end is at the first border structure and the other heat-sink end is at the second border structure. The housing and the heat sink define an air gap permitting air/water-flow to and from the heat sink.

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: An LED floodlight fixture including a housing that forms a substantially water/air-tight chamber, electronic LED driver(s) within the chamber, and an LED assembly secured with respect to the housing adjacent thereto in non-water/air-tight condition, the LED assembly having at least one LED-array module mounted on an LED heat sink. In certain preferred embodiments the housing is a perimetrical structure such that the substantially water-tight chamber substantially surrounds the LED assembly.

Abstract: An LED floodlight fixture having two major principal axes in a fixture plane, the dimensions parallel to the fixtures third principal axis being substantially smaller than the largest dimensions parallel to the fixture plane. The fixture is characterized by a first outer surface which has a first central portion and a first edge-adjacent portion, an opposite second outer surface which has a second central portion substantially aligned with the first central portion and encompassing a light-emitting region and a second edge-adjacent portion having a boundary with the second central portion such boundary defining a reference plane, the first and second edge-adjacent portions meet at a perimetrical edge. The first and second central portions each extend across at least 25% of the area within the perimetrical edge.

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.