Many motorists, wanting to protect themselves on the road and avoid fines, are thinking about installing Daytime Running Lights (DRL). However, simply buying the first LED strip or cheap Chinese lights that you come across is not a solution to the problem, but a direct path to conflict with the law and potential danger on the highway. Correct installation requires compliance with strict standards prescribed in the Technical Regulations of the Customs Union.
Incorrect installation can lead not only to punishment from traffic police inspectors, but also to a blinding effect on oncoming drivers, which is unacceptable. In this article we will analyze all the nuances, from choosing the installation location to the electrical circuit that meets all safety requirements.
It is important to understand that DRLs refer to certified lighting devices, and not side lights or fog lights that operate in constant mode. LED strips, taped on, and Chinese "eyes" without markings are not legal DRLs. Let's figure out how to do everything correctly and safely for your car.
Regulatory framework and GOST requirements
The main document regulating the installation of lighting devices in Russia and the countries of the Customs Union is the Technical Regulations TR TS 018/2011. It is he who determines where, how and what lights should shine on the car. Ignoring these rules makes operating the vehicle illegal.
According to paragraph 6.19 of the regulations, DRLs must be installed in pairs. The number of devices is strictly fixed - two pieces. The use of one powerful spotlight or three lamps is not permitted. The location must be symmetrical relative to the longitudinal axis of the vehicle.
The key parameter is luminous flux. For passenger cars, it should not exceed 1200 Lm, and the minimum luminous intensity in the horizontal direction is 400 cd. Exceeding these standards leads to blinding of other road users, and underestimation makes the installation meaningless from a safety point of view.
Always check for the E (Europe) or DOT (US) marking on the DRL housing. The absence of a code means that the device has not been certified and its use on public roads is prohibited.
There are also strict requirements for installation geometry. The distance from the inner edge of the DRL to the plane of symmetry of the car must be at least 600 mm. If the overall width of the machine is less than 1300 mm, this distance can be reduced to 400 mm.
Selecting installation location and coordinates
Determining the installation location is a critical stage on which not only the appearance of the car depends, but also the legitimacy of the installation. The bumper of modern cars often has standard places (“plugs”) for DRLs. This is ideal as it maintains the factory design and makes compliance easier.
If there are no regular seats, you will have to drill the bumper or use overhead models. It is important to comply with height restrictions here. The height of the lower edge of the luminous surface above the road must be no less than 250 mm and no more than 1500 mm. Exceeding the upper limit (1.5 meters) makes the lights ineffective, and lowering below 25 cm makes them dangerous due to dirt and water.
The distance between the inner edges of the two DRLs must be at least 600mm. This requirement ensures that the vehicle is properly illuminated from the front. For narrow vehicles (width less than 1300 mm), this distance can be reduced to 400 mm.
- 📏 Distance from the ground: strictly from 250 mm to 1500 mm.
- ↔️ Distance between lights: minimum 600 mm (400 mm for narrow cars).
- 🚗 Distance from the side clearance: no more than 400 mm from the edge of the body.
- 🔦 Viewing angle: horizontal 20°, vertical 10° up and down.
Connection diagrams and electrical part
The most common mistake is connecting the DRLs directly to the battery or parallel to the side lights. According to GOST, DRLs must automatically turn on when the engine starts and turn off when it stops. In addition, when you turn on the low beam of the headlights, their brightness should decrease ("parking lights" mode) or they should go out so as not to dazzle at night.
To implement the correct operating logic, it is necessary relay or a specialized DRL controller. A simple connection via a button in the cabin does not meet the requirements of the regulations, since the driver may forget to turn the light on or off.
Let's consider a classic 4-pin connection diagram via a relay. It provides automatic switching on from the generator and the ability to work in tandem with dimensions. For installation you will need a standard automotive relay, a fuse and a set of wires with a cross-section of at least 1.5 mm².
Connection diagram via relay:Pin 30: Battery positive (via 10A fuse)
Pin 85: Negative (ground)
Pin 86: Plus from generator (engine running signal) or ignition switch
Contact 87: Plus on DRL
A more complex, but correct option is a brightness reduction scheme. For this, a 5-pin relay or an additional control unit is used. When the side lights are turned on, the current to the DRLs is limited, reducing the brightness to 30% of the nominal value.
☑️ Check before connecting
Installation parameters correspondence table
For ease of checking your calculations and measurements, use the following table. It summarizes the main requirements of the Technical Regulations for the geometric parameters of the installation.
| Parameter | Minimum value | Maximum value | Note |
|---|---|---|---|
| Height from the road | 250 mm | 1500 mm | Measured to the bottom edge |
| Distance between DRLs | 600 mm | No restrictions | 400 mm for narrow cars |
| Distance from size | No restrictions | 400 mm | From the inner edge of the DRL to the edge of the car |
| Luminous flux | 400 cd | 1200 lm | For one headlight |
Violation of any of these parameters gives the traffic police inspector the formal right to issue a fine or require the dismantling of equipment. You should pay particular attention to the installation height on cars with above-average ground clearance or after a suspension lift.
Compliance with geometric parameters (height and distance between lights) is more important than the brand of installed lamps. Incorrectly positioned certified light is a violation.
Common errors and ways to resolve them
One of the biggest mistakes is installing DRLs in fog lights (FTL) without changing their operation pattern. If the PTF lights constantly along with the engine, this is a violation. PTFs must have a separate switch and cannot function as automatic DRLs.
The second common defect is the use of low-quality wiring. Thin wires, lack of corrugation and poor insulation lead to short circuits. At best, the fuse will blow, at worst, there will be a fire in the engine compartment.
⚠️ Attention: Never connect the DRL directly to the positive terminal of the battery without a relay and fuse. A constant load can lead to a discharge of the battery when parked or a fire in the wiring.
“Collective farm” installation is also common, when the wires simply hang under the bumper or hanging control units. All electrical connections must be securely fastened and protected from moisture. Use heat shrink and waterproof connectors.
What happens if the DRLs are too bright?
Too bright light (more than 1200 lm) is equivalent to installing non-standard xenon. This threatens with deprivation of rights for a period of 6 months to 1 year under Part 3 of Art. 12.5 of the Code of Administrative Offenses of the Russian Federation, since the color and operating mode do not correspond to the design of the vehicle.
Diagnostics and verification of system operation
After completion of installation work, a thorough inspection must be carried out. A visual inspection should confirm the absence of hanging wires and the reliability of the headlights. Electrical testing includes testing of all operating modes.
Check if the DRLs light up immediately after starting the engine. Make sure they go out when you turn off the ignition. If a circuit with dimensions is implemented, turn them on and check for a decrease in the brightness of the DRLs or their complete shutdown.
- 🔍 Visual inspection: wiring integrity, lack of moisture inside the headlights.
- 💡 Engine test: starting and stopping the engine (on/off).
- 🌑 Dimensions test: checking the reaction of the DRL to turning on the external light.
- 🚦 Turn signal test: make sure that the DRLs do not flash along with the turn signals.
If you find that the DRLs continue to light up after the engine is turned off (the effect of the residual voltage "consuming current"), you will need to install a diode in the control circuit or use a higher-quality relay with quenching.
⚠️ Attention: If you needed to drill the bumper when installing the DRL, be sure to treat the edges of the hole with anti-corrosion agent. Otherwise, in a year there will be rust around the headlight, which will destroy the plastic.
Legal aspects and penalties
The installation of DRLs is regulated not only by technical regulations, but also by the Code of Administrative Offenses. The main punishment for incorrect installation or use of uncertified devices is a fine under Part 1 of Article 12.5 of the Code of Administrative Offenses of the Russian Federation.
The fine is 500 rubles. However, if the inspector determines that the color or operation of the headlights does not comply with the requirements (for example, the DRLs are amber or flashing), Part 3 of the same article may be applied. This entails confiscation of the devices and deprivation of rights for a period of 6 months to 1 year.
To avoid problems, keep receipts and certificates of conformity for purchased DRLs. The presence of documents confirms that you used certified equipment, even if questions arise about the method of its installation.
Is it possible to legalize established DRLs?
Theoretically, yes, through the procedure for making changes to the design of the vehicle. However, the cost of examination and testing (about 30-50 thousand rubles) is many times higher than the cost of the headlights themselves and their installation, which makes the procedure economically impractical for ordinary motorists.
Do I need to register the installation of DRLs with the traffic police?
If DRLs are installed in standard places provided by the manufacturer (even if there were plugs there), and certified devices of the same model are used, registration is not required. If the design of the bumper changes (new holes are drilled) or the type of light source changes, formally changes to the STS are required.
Can DRLs be used as markers at night?
No, you can't. DRLs are too bright (400-1200 cd), which will blind oncoming drivers at night. At night, the side lights and low beams should be on. The DRLs should either go out or reduce brightness significantly.
What color of DRLs is allowed according to GOST?
Exclusively white color. Any other shade (yellow, blue, red, green) is prohibited. The use of colored DRLs is equivalent to the installation of special signals or abnormal lights, which leads to serious fines and deprivation of rights.
What to do if the DRLs are burned out?
LED modules are usually not repaired, but replaced entirely. If the entire headlight burns out, replace it. If an individual LED in a line burns out, you often have to change the entire board or headlight, since in a series circuit the combustion of one element extinguishes the entire circuit.
Are DRLs mandatory in Russia?
Yes, according to the traffic rules (clause 19.5), during daylight hours all moving vehicles must have daytime running lights or low beam headlights on. The fine for driving with the lights off during the day is 500 rubles (or a warning).