The main purpose of the headlight is the creation of comfortable, safe drive conditions with poor light illumination, in the dark day and with bad weather. The quality of lighting will depend on the right headlights, and for this you need to decide on the type of headlights and the amount from which you are willing to part.
Halogen headlights are most durable - under normal operating conditions, they will serve you an average of 1000 hours. The advantages of this type: bright lighting, the ability to regulate the intensity of light, a large dimension range for all car models. From disadvantages, you can note the high consumption of energy. The faulty halogen lamp is easy to replace, you just need to touch it, but keep the glove, cloth.Choose the headlights based on the model, your car brand. When buying any type of headlights, inspect them for the presence of chips, cracks, and also ask the auto-shop consultant to check their action by connecting to the voltage network.
I try to take the golden middle - xenonki. With halogens, many still go and nothing. Lives, do not complain about discomfort. I switched to xenon just a year ago, for the sake of interest, and because it cost advantageously for Avito and promised with delivery. I do not regret, I will continue to buy, that's just defined with the manufacturer yet.