Headlamp circuits consist of which of the following?

A) headlamp switch
B) relays
C) dimmer switch
D) all answers are correct

Headlamp Circuits

The electrical pathways that connect the vehicle's battery and switches to the headlamps, enabling them to light up.

Dimmer Switch

A control device used to adjust the brightness of lights by regulating the voltage or current flowing to them.

Relays

Electrically operated switches that allow a low-power electrical circuit to control one or more higher power circuits, widely used in various types of electronic and electrical applications.