A light emitting diode luminaire system, comprising: a power supply; and a plurality of LED luminaires connected in series to the power supply, wherein each one of the plurality of LED luminaires comprises: a housing; a heat sink coupled to the housing; one or more LEDs; a lens coupled to the heat sink and enclosing the one or more LEDs; wherein the heat sink is coupled to the lens at a first end of the heatsink and coupled to the housing at a second, opposite end of the heat sink; a luminaire power supply configured to provide a varying supply voltage to the one or more LEDs and inserted into an interior volume of the heat sink, wherein the luminaire power supply is aligned and inserted into the heat sink via slots of the heat sink such that a semiconductor package of the power supply is in contact with a protruding portion of the heat sink; and an insulator placed on top of the luminaire power supply; wherein the luminaire power supply comprises a power factor correction control integrated circuit configured to provide a constant input impedance by controlling an LED current to vary in a proportion to the supply voltage, wherein the one or more LEDS are connected to an output of the power factor correction control integrated circuit; wherein the power factor correction control integrated circuit has a plurality of pins and wherein a first one of the plurality of pins is connected to one or more resistors (R1, R2, VR1) that set a current based upon the supply voltage that varies; and wherein a second one of the plurality of pins is coupled to a return through a resistor. a power supply; and a plurality of LED luminaires connected in series to the power supply, wherein each one of the plurality of LED luminaires comprises: a housing; a heat sink coupled to the housing; one or more LEDs; a lens coupled to the heat sink and enclosing the one or more LEDs; wherein the heat sink is coupled to the lens at a first end of the heatsink and coupled to the housing at a second, opposite end of the heat sink; a luminaire power supply configured to provide a varying supply voltage to the one or more LEDs and inserted into an interior volume of the heat sink, wherein the luminaire power supply is aligned and inserted into the heat sink via slots of the heat sink such that a semiconductor package of the power supply is in contact with a protruding portion of the heat sink; and an insulator placed on top of the luminaire power supply; wherein the luminaire power supply comprises a power factor correction control integrated circuit configured to provide a constant input impedance by controlling an LED current to vary in a proportion to the supply voltage, wherein the one or more LEDS are connected to an output of the power factor correction control integrated circuit; wherein the power factor correction control integrated circuit has a plurality of pins and wherein a first one of the plurality of pins is connected to one or more resistors (R1, R2, VR1) that set a current based upon the supply voltage that varies; and wherein a second one of the plurality of pins is coupled to a return through a resistor. a housing; a heat sink coupled to the housing; one or more LEDs; a lens coupled to the heat sink and enclosing the one or more LEDs; wherein the heat sink is coupled to the lens at a first end of the heatsink and coupled to the housing at a second, opposite end of the heat sink; a luminaire power supply configured to provide a varying supply voltage to the one or more LEDs and inserted into an interior volume of the heat sink, wherein the luminaire power supply is aligned and inserted into the heat sink via slots of the heat sink such that a semiconductor package of the power supply is in contact with a protruding portion of the heat sink; and an insulator placed on top of the luminaire power supply; wherein the luminaire power supply comprises a power factor correction control integrated circuit configured to provide a constant input impedance by controlling an LED current to vary in a proportion to the supply voltage, wherein the one or more LEDS are connected to an output of the power factor correction control integrated circuit; wherein the power factor correction control integrated circuit has a plurality of pins and wherein a first one of the plurality of pins is connected to one or more resistors (R1, R2, VR1) that set a current based upon the supply voltage that varies; and wherein a second one of the plurality of pins is coupled to a return through a resistor.