A lighting apparatus, comprising: a light emitting diode; a heat sink, comprising: a frustoconical body having a length axis and a radial axis; a plurality of fins (60a-60q), wherein the fins (60a-60q) extend away from the body along the radial axis and are spaced apart from one another along the length axis, wherein each fin in the plurality of fins (60a-60q) has an outer diameter, and wherein the plurality of fins (60a-60q) comprises a first subset of fins (60f-60q), and a second subset of fins (60a-60e); and a housing, wherein the heat sink is disposed in the housing, the light emitting diode has a mounting plane located in an internally recessed portion; wherein the internally recessed portion defines an opening in an end of the heat sink, and the light emitting diode is disposed in the recessed portion and spaced apart from the opening; and wherein the outer diameters of the fins in the first subset (60f-60q) increase when moving from the proximal end of the body toward the distal end of the body along the length axis; characterized in that: the body comprises a solid portion and the internally recessed portion positioned adjacent one another along the length axis; the heat sink is configured to receive heat distally of the light emitting diode and provide a path for thermal conduction from the distal end of the heat sink to the proximal end of the heat sink; and the lighting apparatus further comprises a fan disposed in the housing, wherein when the fan is activated, ambient air is drawn into the housing and exhausted from the housing such that a portion of the heat sink distal of a light emitting diode mounting plane and with it the second subset of the fins (60a - 60e) lies in a convective airflow path. a light emitting diode; a heat sink, comprising: a frustoconical body having a length axis and a radial axis; a plurality of fins (60a-60q), wherein the fins (60a-60q) extend away from the body along the radial axis and are spaced apart from one another along the length axis, wherein each fin in the plurality of fins (60a-60q) has an outer diameter, and wherein the plurality of fins (60a-60q) comprises a first subset of fins (60f-60q), and a second subset of fins (60a-60e); and a housing, wherein the heat sink is disposed in the housing, the light emitting diode has a mounting plane located in an internally recessed portion; a frustoconical body having a length axis and a radial axis; a plurality of fins (60a-60q), wherein the fins (60a-60q) extend away from the body along the radial axis and are spaced apart from one another along the length axis, wherein each fin in the plurality of fins (60a-60q) has an outer diameter, and wherein the plurality of fins (60a-60q) comprises a first subset of fins (60f-60q), and a second subset of fins (60a-60e); and a housing, wherein the heat sink is disposed in the housing, the light emitting diode has a mounting plane located in an internally recessed portion; wherein the internally recessed portion defines an opening in an end of the heat sink, and the light emitting diode is disposed in the recessed portion and spaced apart from the opening; and wherein the outer diameters of the fins in the first subset (60f-60q) increase when moving from the proximal end of the body toward the distal end of the body along the length axis; characterized in that: the body comprises a solid portion and the internally recessed portion positioned adjacent one another along the length axis; the heat sink is configured to receive heat distally of the light emitting diode and provide a path for thermal conduction from the distal end of the heat sink to the proximal end of the heat sink; and the lighting apparatus further comprises a fan disposed in the housing, wherein when the fan is activated, ambient air is drawn into the housing and exhausted from the housing such that a portion of the heat sink distal of a light emitting diode mounting plane and with it the second subset of the fins (60a - 60e) lies in a convective airflow path. the body comprises a solid portion and the internally recessed portion positioned adjacent one another along the length axis; the heat sink is configured to receive heat distally of the light emitting diode and provide a path for thermal conduction from the distal end of the heat sink to the proximal end of the heat sink; and the lighting apparatus further comprises a fan disposed in the housing, wherein when the fan is activated, ambient air is drawn into the housing and exhausted from the housing such that a portion of the heat sink distal of a light emitting diode mounting plane and with it the second subset of the fins (60a - 60e) lies in a convective airflow path.