Car headlights is one of those automotive components which do not trouble you much often, but its importance cannot be underlooked. Like every other mechanism, auto headlights are not saved from malfunction. Reportedly, every tenth pair of car lights could not reach the age of five years. It could be because of various factors including minor accidents or someone may have hit them in the parking area. Another reason is, people do not pay much attention to it and get them replaced when your car lost its eyes, which makes it difficult to drive after sunset. It is a matter of life and death whether you will be blind on night road or not. A car headlight unit serves as your eyes on the road during night driving and is pretty important for the safety of driver and passengers.