

A headlight is also referred to as a headlamp. It is attached to the front of the vehicle to light up the road ahead. The headlight performance has gradually developed throughout generations. Each moving object powered by the engine should have a headlight, like the car itself, the train, aero plane, and motorbike.
To add on, the headlights design and style is always known to be round in shape for a long time, since the native shape of parabolic reflector is round. The round shape helps to project light and focus the beam.
Until the late 1980's is when dealerships were allowed to use any other shape for the headlights, not only the standard round shape. The headlights have always had an automatic system since the previous generations. Essential applications turn the headlights on at dusk and off at dawn while recent applications use sensors to detect the amount of exterior light.