When replacing a conventional low beam bulb on your vehicle, what main precaution must you take?

Question

DentroTest · Accepted Answer

When replacing a halogen or conventional low beam (short-range) bulb, the key point is not to touch the glass envelope or the reflective surface of the headlight with your fingers. Fingerprints leave traces of grease and sweat which, at the high temperatures the lit lamp reaches, degrade the glass and reduce the effectiveness of the light, or damage the reflector mirror. It is not true that you must necessarily go to a workshop: a conventional lamp can be changed by the driver. And the metal connection terminals are not what must be avoided: touching them does not damage the bulb or affect its performance, provided that the electrical system is off.

When replacing a conventional low beam bulb on your vehicle, what main precaution must you take?

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