LED light unit, in particular for a passenger transport vehicle, such as an aircraft, a road vehicle, a ship or a rail car, the LED light unit having at least one LED and being configured to be used with a high intensity discharge lamp power supply, wherein the LED light unit comprises: a power input coupleable to the high intensity discharge lamp power supply, characterised in that the LED light unit comprises: a capacitor switchably coupled to the power input for absorbing electrical energy from the high intensity discharge lamp power supply, a power dissipating element switchably coupled to the power input for dissipating electrical energy from the high intensity discharge lamp power supply, and a control circuit coupled to the power input, wherein the control circuit is configured to sense an electric behavior at the power input and is further configured to selectively couple the capacitor to the power input and to selectively couple the power dissipating element to the power input as a response to the electric behavior at the power input, wherein the control circuit is configured to couple the capacitor to the power input in a charging phase and wherein the control circuit is configured to couple the power dissipating element to the power input in a voltage conditioning phase, wherein the voltage conditioning phase is arranged between the charging phase and a nominal operation mode. a power input coupleable to the high intensity discharge lamp power supply, characterised in that the LED light unit comprises: a capacitor switchably coupled to the power input for absorbing electrical energy from the high intensity discharge lamp power supply, a power dissipating element switchably coupled to the power input for dissipating electrical energy from the high intensity discharge lamp power supply, and a control circuit coupled to the power input, wherein the control circuit is configured to sense an electric behavior at the power input and is further configured to selectively couple the capacitor to the power input and to selectively couple the power dissipating element to the power input as a response to the electric behavior at the power input, wherein the control circuit is configured to couple the capacitor to the power input in a charging phase and wherein the control circuit is configured to couple the power dissipating element to the power input in a voltage conditioning phase, wherein the voltage conditioning phase is arranged between the charging phase and a nominal operation mode. a capacitor switchably coupled to the power input for absorbing electrical energy from the high intensity discharge lamp power supply, a power dissipating element switchably coupled to the power input for dissipating electrical energy from the high intensity discharge lamp power supply, and a control circuit coupled to the power input, wherein the control circuit is configured to sense an electric behavior at the power input and is further configured to selectively couple the capacitor to the power input and to selectively couple the power dissipating element to the power input as a response to the electric behavior at the power input, wherein the control circuit is configured to couple the capacitor to the power input in a charging phase and wherein the control circuit is configured to couple the power dissipating element to the power input in a voltage conditioning phase, wherein the voltage conditioning phase is arranged between the charging phase and a nominal operation mode.