LIGHTING ASSEMBLY FOR AUTOMOTIVE VEHICLES

The device has a set of optical modules, each comprising a light source. One of the optical modules generates a first flat cut-off light beam (F1), and another optical module generates a partially oblique cut-off beam (F2), where the device emits total beams (Fg). One of the total beams is superposition of two of the beams emitted by the optical modules. A third optical module generates a second cut-off light beam (F3) approximately oblique and different from the partially oblique cut-off beam. An independent claim is also included for a method for installing a lighting device or a set of lighting devices.