1.5.5. Replacement of bulbs
Before replacement of a bulb, open its chain.
Do not touch glass of a new bulb by fingers as the fat remaining on a bulb after a touch evaporates when the bulb heats up, steam accumulates on a reflector and darkens it.
Always establish a bulb of the same type. Designations are put on a bulb socle.
It is always recommended to have a set of spare bulbs in the car.
A set of spare bulbs has to include, at least, bulbs of the following types necessary for safe driving:
12 V/70/50W – for headlights of forward light
12 V/21/5W – for forward indexes of turns and forward marker lights
12 V/21W – for back indexes of turns
12 V/3W – for back marker lights
12 V/21/5W – a stoplight and headlights of tail light
12 V/4W – bulbs of illumination of registration plate.