Conventional bulbs (non-halogen) are subject to wear and tear. They are replaced approximately every 2 years, even if they have not yet burned out. An incandescent bulb with reduced brightness is identified by black deposits on the glass bulb.
Before replacing a burnt-out lamp, switch off the corresponding consumer.
Warning: Do not touch the lamp glass with bare hands. Fingerprints darken the lamp and leave a residue on the reflector due to heat. Be sure to replace the lamp only with a lamp of the same rating. If there are stains on the lamp glass, remove them with a cloth soaked in alcohol.
Original source of information [MITSUBISHIMAN]
