A light emitting diode, LED, lighting system comprising: at least one LED load (304, 304.0-304.N) including at least one LED; a LED feedback node adapted to provide a LED current feedback signal (LEDi sense) representing at least one current level in the at least one LED load and; a PFC switch (308, 1502); a LED current control switch (310, 1504) adapted to control the current in the at least one LED load; an integrated circuit power factor correction, PFC, and LED drive controller (305, 1512), characterised in that the controller comprises: a digital signal processor, coupled to the LED feedback node, and configured to: operate from a digital level supply voltage; generate a PFC control signal (CS 1D); and generate an LED current control signal (CS 2D); a first buffer, coupled to the digital signal processor, and configured to: operate from a medium level supply voltage (V aux), wherein the medium level supply voltage is greater than the digital level supply voltage; receive the PFC control signal (CS 1D); and convert the PFC control signal (CS 1D) into the PFC switch control signal (CS 1) to control the conductivity of the PFC switch; and a second buffer, coupled to the digital signal processor, and configured to: operate from the medium level supply voltage; receive the LED current control signal (CS 2D); and convert the LED current control signal (CS 2D) into an LED current control switch signal (CS 2) to control the conductivity of the LED current control switch. at least one LED load (304, 304.0-304.N) including at least one LED; a LED feedback node adapted to provide a LED current feedback signal (LEDi sense) representing at least one current level in the at least one LED load and; a PFC switch (308, 1502); a LED current control switch (310, 1504) adapted to control the current in the at least one LED load; an integrated circuit power factor correction, PFC, and LED drive controller (305, 1512), characterised in that the controller comprises: a digital signal processor, coupled to the LED feedback node, and configured to: operate from a digital level supply voltage; generate a PFC control signal (CS 1D); and generate an LED current control signal (CS 2D); a first buffer, coupled to the digital signal processor, and configured to: operate from a medium level supply voltage (V aux), wherein the medium level supply voltage is greater than the digital level supply voltage; receive the PFC control signal (CS 1D); and convert the PFC control signal (CS 1D) into the PFC switch control signal (CS 1) to control the conductivity of the PFC switch; and a second buffer, coupled to the digital signal processor, and configured to: operate from the medium level supply voltage; receive the LED current control signal (CS 2D); and convert the LED current control signal (CS 2D) into an LED current control switch signal (CS 2) to control the conductivity of the LED current control switch. a digital signal processor, coupled to the LED feedback node, and configured to: operate from a digital level supply voltage; generate a PFC control signal (CS 1D); and generate an LED current control signal (CS 2D); operate from a digital level supply voltage; generate a PFC control signal (CS 1D); and generate an LED current control signal (CS 2D); a first buffer, coupled to the digital signal processor, and configured to: operate from a medium level supply voltage (V aux), wherein the medium level supply voltage is greater than the digital level supply voltage; receive the PFC control signal (CS 1D); and convert the PFC control signal (CS 1D) into the PFC switch control signal (CS 1) to control the conductivity of the PFC switch; and operate from a medium level supply voltage (V aux), wherein the medium level supply voltage is greater than the digital level supply voltage; wherein the medium level supply voltage is greater than the digital level supply voltage; receive the PFC control signal (CS 1D); and convert the PFC control signal (CS 1D) into the PFC switch control signal (CS 1) to control the conductivity of the PFC switch; and a second buffer, coupled to the digital signal processor, and configured to: operate from the medium level supply voltage; receive the LED current control signal (CS 2D); and convert the LED current control signal (CS 2D) into an LED current control switch signal (CS 2) to control the conductivity of the LED current control switch. operate from the medium level supply voltage; receive the LED current control signal (CS 2D); and convert the LED current control signal (CS 2D) into an LED current control switch signal (CS 2) to control the conductivity of the LED current control switch.