Halogen lamps are lamps in which the halogen iodine (formerly also bromine) is added to the filament. This has a positive effect on the colour temperature, the brightness and the lifespan of the lamp.

The headlights are the central front lighting on motor vehicles and usually comprise low beam and high beam in a single lamp or in separate lamps. The low beam provides glare-free illumination with a clear cut-off line, while the high beam covers a greater distance – but without a cut-off line. …

A high beam is an additional beam pattern of headlights. It is brighter and ranges further than the normal low beam. One special variant here is the pencil beam.

Horns belong to the class of audible signal devices. They are manually activated as continuous audio signals, and in contrast to backup alarms, primarily serve for the acoustic alerts toward the front of the vehicle. Even modern horns still work according to the principle of the Wagners hammer.