A lighting apparatus and system and method for controlled lighting are provided. In one embodiment, a lighting apparatus comprises a heat sink including a center passageway passing from a chimney inlet to a driver circuit housing, a plurality of internal heat sink fins within the center passageway, and a plurality of external heat sink fins adjacent the driver circuit housing. A flow channel is between each set of two adjacent heat sink fins of the plurality of heat sink fins to provide a plurality of internal inlet flow channels and a plurality of external outlet flow channels, with each flow channel aligned with one of a plurality of PCBs, each having an LED mounted thereon.

Heat dissipation devices for a light emitting diode (LED) lamp are presented including: a base; a number of heat conducting fins vertically stacked and mechanically coupled with the base, where the heat conducting fins radiate outward from the base; and an LED module mechanically coupled with the base. In some embodiments, the base further includes a thermal conductive grease for maximizing heat transfer between the base on the LED socket. In some embodiments, the thermal conductive grease is a silicon grease. In some embodiments, the heat conducting fins further include: a number of vented separators positioned along at least one surface of each of the number of heat conducting fins; a rib feature disposed lengthwise along each surface of each of the number of heat conducting fins.

Heat dissipation devices for a light emitting diode (LED) lamp are presented including: a base; a number of heat conducting fins vertically stacked and mechanically coupled with the base, where the heat conducting fins radiate outward from the base; and an LED module mechanically coupled with the base. In some embodiments, the base further includes a thermal conductive grease for maximizing heat transfer between the base on the LED socket. In some embodiments, the thermal conductive grease is a silicon grease. In some embodiments, the heat conducting fins further include: a number of vented separators positioned along at least one surface of each of the number of heat conducting fins; a rib feature disposed lengthwise along each surface of each of the number of heat conducting fins.

Heat dissipation devices for a light emitting diode (LED) lamp are presented including: a base; a number of heat conducting fins vertically stacked and mechanically coupled with the base, where the heat conducting fins radiate outward from the base; and an LED module mechanically coupled with the base. In some embodiments, the base further includes a thermal conductive grease for maximizing heat transfer between the base on the LED socket. In some embodiments, the thermal conductive grease is a silicon grease. In some embodiments, the heat conducting fins further include: a number of vented separators positioned along at least one surface of each of the number of heat conducting fins; a rib feature disposed lengthwise along each surface of each of the number of heat conducting fins.

A light includes a housing and a heat sink extending upward from a lower portion of the housing. The heat sink includes a central body that defines a central aperture, a plurality of interior fins extending into the central aperture, and a plurality of light support surfaces arranged around a perimeter of the central body. The light also includes a first plurality of LEDs coupled to the light support surfaces and arranged to emit light in a 360 degree pattern, a second plurality of LEDs are supported on top of the heat sink and arranged to emit light upward, a power input supported on the lower portion of the housing, a battery pack received in a battery port defined in the lower portion of the housing, and a control panel is supported on the lower portion of the housing to control operation of the LEDs.

A light includes a housing and a heat sink extending upward from a lower portion of the housing. The heat sink includes a central body that defines a central aperture, a plurality of interior fins extending into the central aperture, and a plurality of light support surfaces arranged around a perimeter of the central body. The light also includes a first plurality of LEDs coupled to the light support surfaces and arranged to emit light in a 360 degree pattern, a second plurality of LEDs are supported on top of the heat sink and arranged to emit light upward, a power input supported on the lower portion of the housing, a battery pack received in a battery port defined in the lower portion of the housing, and a control panel is supported on the lower portion of the housing to control operation of the LEDs.

A high bay light fixture includes a substantially disc-shaped base, disposed horizontally so as to define an upper surface, a lower surface and a vertical axis. Groups of first light emitting diodes (LEDs) couple with the lower surface of the base. The LEDs within each group of first LEDs are arranged along one or more arcs of substantially constant radius relative to the vertical axis. At least one lower optic couples with the lower surface of the base such that the lower surface and the lower optic enclose the groups of the first LEDs. A plurality of second LEDs couples with the upper surface of the base. Upper optics couple with the upper surface of the base, such that the upper surface of the base and each of the upper optics enclose at least one of the second LEDs.

A high bay light fixture includes a substantially disc-shaped base, disposed horizontally so as to define an upper surface, a lower surface and a vertical axis. Groups of first light emitting diodes (LEDs) couple with the lower surface of the base. The LEDs within each group of first LEDs are arranged along one or more arcs of substantially constant radius relative to the vertical axis. At least one lower optic couples with the lower surface of the base such that the lower surface and the lower optic enclose the groups of the first LEDs. A plurality of second LEDs couples with the upper surface of the base. Upper optics couple with the upper surface of the base, such that the upper surface of the base and each of the upper optics enclose at least one of the second LEDs.

In some embodiments, a lighting element comprising at least first and second solid state light emitters, a first heat sink structure with a fold region between first and second heat sink regions, and at least one light emitter on each of the heat sink regions, and methods of making. In some embodiments, a lighting element, comprising plural heat sink regions on respective regions of a flexible circuit board, and plural light emitters on respective regions of the flexible circuit board, and methods of making. In some embodiments, heat sink structures comprising plural heat sink regions and a circuit board with plural regions, and lighting elements comprising them. In some embodiments, a heat sink structure, comprising plural heat sink regions and an internal flow guide structure, and lighting elements comprising same. Also, other lighting elements, lamps and heat sink structures.

In some embodiments, a lighting element comprising at least first and second solid state light emitters, a first heat sink structure with a fold region between first and second heat sink regions, and at least one light emitter on each of the heat sink regions, and methods of making. In some embodiments, a lighting element, comprising plural heat sink regions on respective regions of a flexible circuit board, and plural light emitters on respective regions of the flexible circuit board, and methods of making. In some embodiments, heat sink structures comprising plural heat sink regions and a circuit board with plural regions, and lighting elements comprising them. In some embodiments, a heat sink structure, comprising plural heat sink regions and an internal flow guide structure, and lighting elements comprising same. Also, other lighting elements, lamps and heat sink structures.