a lighting apparatus using at least one light - emitting diode , back - reflecting collection optics for leds , and an improved heat sink mounting apparatus which promotes efficient heat dissipation generated from the led while minimizing light obstruction and glare . the lighting apparatus contains a main housing ; a reflector disposed within the main housing , the reflector having a front side and a rear side ; a top rim thermally coupled to one end of the main housing ; a heat conducting body positioned to face the front side of the reflector , the heat conducting body comprising a heat pipe thermally coupled to the top rim ; at least one light - emitting diode thermally coupled to the heat conducting body , the at least one light - emitting diode being positioned to face directly at the front side of the reflector so that light emitted from the at least one light - emitting diode is directed to the front side of the reflector .