Size lights: when to turn on traffic rules and how to avoid fines

The onset of dusk or sudden fog on the track are situations that require the driver to react immediately and correctly. Many motorists are still confused in the nuances of using lighting devices, believing that only a vehicle is enough to indicate a vehicle in the dark. position lamps. However, modern legislation and the physics of light propagation dictate their own strict safety conditions, ignoring which can cost not only money, but also life.

Understanding the difference between headlights is critical for every owner motor-car. The misconception that the “dimensions” are designed to drive at night often leads to accidents when the car is simply not visible to other road users at a sufficient distance. In this article, we will discuss in detail the current traffic rules, technical features of optics and the legal consequences of improper use of lighting devices in 2026.

It is important to note at once that position lights are not intended to illuminate the roadwayTheir function is exclusively signaling. They only indicate the dimensions of your vehicle in static or when driving at a minimum speed in certain conditions. Active movement in the dark is required. passing-lightThis is a way to not only see the car itself, but also the road in front of it.

Differences between dimensions and passing light

A fundamental misconception of many drivers is to equate position lights with a full-fledged light source. Positioning lamps (or simply "dimensions") are low-power lamps located at the corners of the body, whose task is to make the car visible from the side and rear in conditions of insufficient visibility when it is standing or moving very slowly. Their light flux is extremely weak and is not able to penetrate even a slight mist.

Unlike them, passing-light This is the driver’s main tool at night. It is pointed down and forward, illuminating a section of road about 40-50 meters long in front of the hood. Using only dimensions instead of passing beams is equivalent to driving with the headlights off from a safety point of view, since the oncoming driver may notice such a car too late.

Technically, these systems are separated in the control unit. electrical car. Often drivers forget that the automatic mode of "Daytime Running Lights" does not include rear dimensions and license plate lighting. Therefore, when entering the tunnel or with a sharp deterioration in the weather, you can not rely on automation - you must manually activate the device. passing-beam.

Technical nuances of lamps

Sidelights often use lower power (5-10 W) or LED modules, whereas passing beam lamps consume 55 W or more. Installing LEDs in size instead of incandescent lamps without changing the wiring can lead to errors on the onboard computer.

It is also worth mentioning daytime running lights (DHO). They are brighter than the dimensions and are designed to indicate the car during the day. However, like their dimensions, DRLs do not light the road and often do not light taillights, making their use in the dark dangerous and illegal.

When the SDA is allowed to use only dimensions

The traffic rules clearly regulate situations where the use of only position lights is permissible. This is especially true for low visibility conditions, but only in combination with other factors. For example, § 19.1. indicates that when stopping or parking in the dark on unlit sections of the road, the driver is obliged to mark the vehicle with position lights.

The second important aspect is the towing of a power-driven vehicle. When towing on a flexible or rigid clutch in the dark or in poor visibility, the towed vehicle must be marked position lamps. This helps other participants in the movement to assess the real length of the train and the maneuverability of the train.

• 🚙 When parking on the side of the road at night outside the village, you need to turn on the dimensions so that you are noticed.
• 🌫️ In fog conditions, when visibility is less than 300 meters, the dimensions work in conjunction with fog lamps, but do not replace passing light when driving.
• 🚧 When driving a slow-moving vehicle or when performing road works, the dimensions are an obligatory element of the alarm.

However, traffic on public roads at night only on position lights. forbidden. Even if the street is well lit with lights, you must use a passing light. Dimensions in motion at night is a gross violation that creates an emergency situation.

Stop and Park: Rules for Lighting in Dark Time

The scenario of stopping on the road at night requires the driver to pay special attention to light alarms. If you have to park on the road or roadside in the dark, the algorithm of actions should be as follows: first you turn on the road or roadside. alarmWhen you get out of the car, you know that it’s burning. position lamps.

In populated areas where there is artificial lighting, the rules may seem softer, but they still require a standing vehicle designation. If you leave your car in the parking lot at night, the dimensions on will help other drivers and pedestrians see the contours of your car. motor-car and avoid collision.

There is a common mistake when drivers leave the passing light on in the parking lot. This leads to a quick discharge. battery. The overall lights consume significantly less energy (usually 5-10 W vs 55 W or more of the passing beam), so they are the only correct choice for long-term parking.

⚠️ Warning: Leaving the car on an unlit section of the track at night without the position lights on, you risk causing a serious accident. The driver of the next car may not notice the obstacle until the moment of braking.

It is also worth remembering the rule of using light when forced to stop. If the breakdown occurred at night, immediately after installing the emergency stop sign, you must ensure the operation of the dimensions. If the electrical equipment is faulty, the use of retroreflective vests And the signs become critical.

Traffic in low visibility conditions

Fog, rainfall, snowfall or dusk are all classified as conditions of low visibility. At this point, the driver must be able to passing-light, fog lamps (if any) and rear fog lamps. The overall lights in this situation burn automatically along with the main light, but they will not save the situation on their own.

The physics of the process is simple: light from low-power position lamps is scattered in water droplets or snowflakes and does not reach the eyes of other drivers. Middle light It has a more powerful beam and the correct direction, which allows you to "break through" the veil of precipitation. Using only dimensions in the fog is tantamount to trying to drive with your eyes closed.

Particular attention should be paid to the rear fog lamps. They are brighter than the dimensions and are designed specifically to warn behind driving drivers in a dense stream of precipitation. However, once the fog dissipates, they must be turned off to avoid blinding other participants in the movement, as their brightness is comparable to the stop lights.

The table below compares the lighting requirements under different conditions:

Conditions	Essential instruments	Are only dimensions acceptable?
Night, movement	Near light, dimensions	No.
Night, parking.	Positioning lamps	Yes.
Fog, movement	Near-light, PTF, dimensions	No.
Towing at night	Dimensions (on towed)	Yes (only on towed vehicle)

Penalties for improper use of lighting devices

Violation of the rules for the use of external lighting devices entails administrative liability under the Code of Administrative Offences. Most often, traffic police inspectors write a fine under part 1 of article 12.20 of the administrative code of the Russian Federation for violation of the rules for the use of external lighting devices. The amount of the fine for 2026 is 500 rubles.

However, if the driver is driving at night without the passing beam on (using only dimensions), this can also be regarded as a safety hazard. In the event that such a violation will lead to an accident, liability can be reclassified to a more serious one, up to deprivation of rights, if a direct causal relationship is proved.

Separately, it is worth mentioning fines for malfunctioning lighting devices. If you have a burnt out lamp. position lampIf you are stopped by an inspector, this also falls under Article 12.5 of the Administrative Code of the Russian Federation. Although this is most often followed by a warning, in strict accordance with the law, the fine can also be 500 rubles.

⚠️ Warning: Repeated violation of the rules of use of lights during the year can be regarded by the court as a systematic neglect of safety, which will entail a more severe punishment.

We should not forget about the “informal” fines. Driving one size at night often provokes other drivers to aggressive behavior, as your car is not distinguishable. This can lead to tangential clashes, where you are most likely to be blamed for violating lighting rules.

Technical Failures and Optics Maintenance

Regular inspection of lighting devices is the responsibility of every driver. A common problem is the oxidation of contacts in lamp cartridges position lampsEspecially in winter when reagents are used on the roads. Moisture, getting inside the headlight, can cause a short circuit or burnout of the lamp at the most inopportune moment.

If you notice that the dimensions are burning full or blinking, this is a signal of problems in the electrowiring Or the nearing end-of-life of the lamp itself. In modern cars with a CAN bus, the failure of the lamp size will immediately appear on the dashboard. Ignoring these signals can cause the light control unit to fail, which is expensive to replace.

It is also important to monitor the transparency of the silk. Mud, snow or fogging of the headlight can reduce the intensity of the light of the overall lamp by 50-60%. Simply wiping the optics before leaving at night is an elementary action that can save the situation.

• 🔦 Regularly check the integrity of the lamps.
• 💧 Watch for the tightness of the headlights to avoid fogging.
• ⚡ Use lamps only the power specified in the instructions for motorcar.

When replacing lamps, try not to touch the glass bulb of halogen lamps with your bare hands. Fat from the fingers causes local overheating of the glass, which leads to its rapid blackening and destruction. For lamps dimensions it is less critical than for passing beam, but the rule of good tone and durability.

Frequently Asked Questions (FAQ)

Can you drive at night in the city only on dimensions, if there is street lighting?

No, you can't. According to traffic rules, at night, regardless of the presence of street lighting, the driver must turn on the passing lights. The dimensions of the movement at night are not enough for safe driving.

What is the penalty for driving with one size at night?

The fine is 500 rubles per hour. 1 st. 12.20 RF Administrative Code. However, if it leads to an accident, the consequences will be much more serious, including criminal liability.

Do I need to include the dimensions during the day when driving?

During the day in Russia, traffic must be carried out with the passing light of headlights or daytime running lights (DHO). Dimensions during the day do not need to include if the DHO or passing light work, since the dimensions are less bright and worse noticeable in bright sun.

What to do if the lamp size is burned out, and there is no spare at hand?

If you are on the road, you can try temporarily using a lamp of the same size from another place (for example, from the backlight of the room or size on the other hand, if the design allows), but it is better to purchase a new one as soon as possible. Movement with faulty optics is prohibited.

Are the rules different for motorcycles?

Yeah, the rules are stricter for motorcycles. They are prohibited from moving with the dipped headlights off at any time of the day. Dimensions on the motorcycle must also be lit, but passing light is a prerequisite for driving.