Headlights. There are two types of headlights—low beam and high beam. These lights allow the driver to see the roadway in the dark, while also signaling to other motorists that a car is present. Low beams provide a light distribution to give adequate forward and lateral illumination without blinding other road users with excessive glare. High beams provide an intense, center-weighted distribution of light with no particular control of glare and should only be used when there are no visible cars in front of you (coming or going).
