LED lighting device with modelling device for modelling a voltage profile

The invention relates to an LED lighting device with modelling device for modelling a voltage profile. The present invention is directed to an LED lighting device for emitting a particularly uniform light and provides an LED lighting device is designed to supply power by an AC power supply. The LED lighting device includes a rectifier, an LED light unit, a circuit configuration designed to switch the LED to different circuit states to make the LED light unit has different forward voltages at different circuit states, a control device for controlling the circuit configuration, and a modeling device for modelling a voltage profile. The control device makes the forward voltages of the LED light unit accommodate the voltage profile of the rectified AC voltage. The modeling device is based on the control circuit state of the modelling voltage profile established based on the measured variables of the real voltage profile of the supply voltage.