Statistics prove that you are three times more likely to have a fatal car accident at night than during the day. Low visibility and fatigue are contributing factors to these statistics. Headlights are an essential component to cars. The importance of dimming headlights for oncoming vehicle is obvious. It takes seven seconds on average to recover good vision after the driver stares at bright lights
, and that’s for young people with good vision and good dark adaptation. Anything can happen within those 7 seconds. Having headlights aimed right is only half of the responsibility to drivers, because even perfectly aimed lights can blind oncoming drivers if they are not dimmed whenever we meet another car. When meeting another vehicle, drivers must dim their headlights in advance and keep them dimmed until the vehicle has passed. Many drivers also make the error of dimming their headlights too soon. Night drivers should realize the importance of this, but somehow this important consideration is often ignored. Results of a survey showed that drivers do not dim their headlights as they consider the task painstaking. Dimming headlights manually while driving is not only laborious but troublesome, especially while driving in stressful conditions or on highways
