An assembly comprising first and second headlights for a motor vehicle, the first and second headlights respectively comprising first and second light sources and first and second power supply control devices respectively designed to supply a current of predetermined intensity to said first and second light sources, the assembly comprising : ∘ a first memory element of the first control device configured for : - recording within the first control device data relating to the intensity of the electric current to be supplied to the first light sources ; ∘ a first memory element of the second control device configured for: - recording within the second control device data relating to the intensity of the electric current to be supplied to the second light sources ; ∘ data receiving means (112, 212, 312; 322) of the first control device configured to receive said data from an external device, and ∘ data processing means of the first control device having: - within the first control device , write access to the first memory element , configured to write data received by the data receiving means into the first memory element of the first control device ; ∘ data processing means of the second control device having : - within the second control device , write access to the first memory element , configured to write data received by the data receiving means into the first memory element of the second control device ; characterized in that the first control device further comprises a second memory element comprising the data defining the intensity of the electric current to be supplied to the second light sources , intended to be powered by the second control device . ∘ a first memory element of the first control device configured for : - recording within the first control device data relating to the intensity of the electric current to be supplied to the first light sources ; - recording within the first control device data relating to the intensity of the electric current to be supplied to the first light sources ; ∘ a first memory element of the second control device configured for: - recording within the second control device data relating to the intensity of the electric current to be supplied to the second light sources ; - recording within the second control device data relating to the intensity of the electric current to be supplied to the second light sources ; ∘ data receiving means (112, 212, 312; 322) of the first control device configured to receive said data from an external device, and ∘ data processing means of the first control device having: - within the first control device , write access to the first memory element , configured to write data received by the data receiving means into the first memory element of the first control device ; - within the first control device , write access to the first memory element , configured to write data received by the data receiving means into the first memory element of the first control device ; ∘ data processing means of the second control device having : - within the second control device , write access to the first memory element , configured to write data received by the data receiving means into the first memory element of the second control device ; - within the second control device , write access to the first memory element , configured to write data received by the data receiving means into the first memory element of the second control device ; <EOS>