Incandescent bulbs are subject to wear and tear. They should be replaced every 2 years, even if they are still in good condition. This does not apply to H4 bulbs (halogen lamps) main headlights, they last much longer and are replaced only in case of failure. A lamp with reduced brightness is identified by a black coating on the glass bulb. Before replacing the lamp, turn off the switch of the corresponding consumer.
Warning! Do not touch the lamp glass with your fingers. Fingerprints darken the lamp and leave a residue on the reflector due to heat. Be sure to use a lamp of the same design. If there are stains on the lamp glass, remove them with a cloth and alcohol.
