Heat dissipating LED lighting fixture

A heat dissipating lighting fixture, comprising:

• a light engine having a plurality of light emitting diodes formed in at least one elongated row extending substantially a length of the light engine, the light emitting diodes forming an array having an outer perimeter edge and an inner perimeter edge;
• an upper light engine heat sink conductively coupled to the light engine and having spaced apart cooling fins and vent apertures disposed adjacent to the outer perimeter edge and the inner perimeter edge of the light emitting diode array;
• a lower light engine heat sink conductively coupled to the light engine and having spaced apart cooling fins and vent apertures disposed adjacent to the outer perimeter edge and the inner perimeter edge of the light emitting diode array;
• a driver assembly coupled to the light engine in spaced relation thereto, the driver assembly comprising a driver for supplying power to the light engine and a driver heat sink conductively coupled to the driver and disposed relative to the upper and lower light engine heat sinks so as to prevent conductive heat transfer between the driver heat sink and the upper and lower light engine heat sinks;
• wherein the cooling fins of the lower light engine heat sink comprises spaced apart generally parallel rows of cooling fins, the light emitting diode array being disposed between the rows of cooling fins;
• and
• wherein the upper and lower light engine heat sinks are disposed relative to one another such that air vents of the upper light engine heat sink are each aligned with at least one cooling fin of the lower light engine heat sink.

A heat dissipating lighting fixture, comprising:

• a generally ring-shaped light engine having a plurality of light emitting diodes formed in at least one elongated row extending substantially a length of the light engine, the light emitting diodes forming an array having an outer perimeter edge and an inner perimeter edge;
• at least one light engine heat sink conductively coupled to the light engine and disposed adjacent to the outer perimeter edge and the inner perimeter edge of the light emitting diode array;
• and
• a driver assembly substantially surrounded by the light engine, in spaced relation thereto, the driver assembly comprising a driver for supplying power to the light engine and a driver heat sink conductively coupled to the driver.