Scania R620 light options?

[Gazzalene]

On the Scania R620 I am building the truck manual and MFC manual show aux lights at the front and rear.

The front aux lights are shown in the lower front bumper area and the rear light cluster, What are these aux lights? what are the classed/used for? I am new to trucks

Also brake lights, what happens when the tail lights are turned on? is there 2 intensities?

[Britaff]

Hi  Gazzalene the auxiliary lights in the rear are the reverse lights and yes the side light leds get brighter when you hit the brakes