Installation of additional light on the roof of the car

Additional lighting is not just a tuning for SUVs, but also a real need for those who often travel outside the city in the dark. Lights on the roof of the car It allows to significantly expand the visibility zone, illuminating not only the road immediately in front of the bumper, but also the roadside, as well as remote objects. This is critical when driving on unlit roads or in complete darkness in the forest, where the standard headlights do not cope perfectly.

However, before you buy the first chandelier or a pair of spotlights, you need to clearly understand the purposes of their use and legal restrictions. Incorrectly selected equipment can blind oncoming drivers, which creates an emergency situation, or lead to fines from traffic police inspectors. In this article we will discuss the technical aspects of the choice, the features of installation and the legal nuances of the operation of additional light.

The modern market offers a huge variety of solutions: from compact to compact. LED bars to massive rotary headlight detectors. The choice of the specific type depends on where you plan to operate the car. For urban environments with rare trips to the country one option is suitable, while for expeditions to the taiga, the requirements for light flux and reliability will be completely different.

Choice of type of additional lighting

The first step in lighting upgrades is to determine the type of device. Today, the undisputed leader is LED solutions. They consume less energy, have a huge resource and are resistant to vibrations, which is extremely important for the roof, where the load when moving on irregularities is maximum.

There are several basic form factors, each of which has its own light distribution features. chandelier - this is a classic solution in the form of a grille with headlights installed in it, often having a rotary mechanism. LED bar It is a single panel that provides a wide and even light beam. Also popular are some of the individual spotlightThese can be placed at the corners of the roof to create powerful long-range beams.

⚠️ The use of headlights with colored glass (blue, red, green) on public roads is strictly prohibited and is equated to the installation of special signals.

When choosing, you should also consider the power and strength of the light flux, measured in lumens. Do not chase the maximum numbers unless you plan to drive in total darkness at high speeds. Excess light can lead to the illumination of your own hood or the creation of a “light wall” in fog or snowfall.

• 💡 LED bars: provide wide fan light, ideal for working in pairs with standard passing light.
• 🔦 Spotlights: They provide a narrow but very long-range beam, effective for viewing distant objects.
• 🔄 Turning lights: allow you to change the direction of the beam, which is convenient when maneuvering in the forest or off-road.
• 🚙 Combined chandeliers: They combine different types of lamps for universal use.

It is also important to pay attention to the degree of protection of the body. The minimum standard required for the roof is IP67better. IP68. This ensures that the device will withstand not only a rainstorm, but also a short-term dive, as well as stones and twigs.

Legal aspects and installation rules

Installation of any additional equipment on the car in Russia is regulated by the Technical Regulations of the Customs Union. Light on the roof It is not a standard element for most civilian cars, so its installation is formally considered to be a change in the design of the vehicle.

According to the current regulations, the use of additional high-beam headlamps is allowed only outside public roads. On the road, you must turn them off when oncoming cars appear. Moreover, if the headlamps do not have a marking corresponding to the type of lamp, or their installation is not provided for by the manufacturer, the inspector has the right to issue a fine and even cancel the registration of the vehicle.

Particular attention should be paid to the installation site. Headlights should not obstruct the driver’s view, which is especially important for low roofs of passenger cars. They also should not block the work of regular antennas or close the license plates (if we are talking about the trunk, covering the rear number).

How do you legalize the installation?

For full legalization, it is necessary to undergo the procedure in an accredited laboratory, obtain a conclusion about the possibility of making changes, install equipment, undergo a technical inspection and register changes in the traffic police. The process is long and expensive.

In practice, many drivers set the lights, understanding the risks. The main rule of security and minimizing problems with the law is competent switching. Additional light should be turned on by a separate button and in no case should it be constantly lit together with the standard passing light in urban mode.

Type of violation	Possible punishment	Article of the Cao
Installation of unrecorded changes	Fine 500 rubles. + Cancellation of registration	12.5 p.1.1.1
Use of high-beam in the city	Fine 500 rubles.	12.19 p.1.1
Installation of special signals (flashings)	Fine 2,500 rubles. + confiscation of devices	12.4 p.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1
Failure of external lighting devices	Warning or fine 500 rubles.	12.5 p.1.1.1

If you plan to use the car primarily for sports or expeditions where maximum brightness is required, it makes sense to consider a temporary installation with quick dismantling, although this is inconvenient.

Preparation for installation: tools and materials

Quality installation begins long before the moment of drilling the first hole. You will need to carefully plan the placement of the equipment and prepare all the necessary components of the electrical circuit. Savings on wires or relays are unacceptable here, since we are talking about high currents.

To work, you will need a standard set of automotive tools: a drill or screwdriver, a set of drills (including stepped ones for metal), keys, cutters and tools for cleaning wires. Pay special attention to the insulation of the connections, since the roof of the car is a zone of high humidity and temperature changes.

A critical element is the choice of wire cross section. The more powerful the light, the thicker the veins should be. For a 100-150 W LED bar, the minimum cross-section of the copper wire should be 2.5 mm2, and preferably 4 mm2. The use of thin wires will result in a voltage drop, dim glow and, in the worst case, insulation melting and fire.

It is also necessary to purchase high-quality pole-group. The regular wiring of the car is not designed to connect powerful consumers directly through the button. The relay will take over the switching of currents, and the button will control only the weak current of the relay winding.

• 🔌 Rele: At least 30-40 Amps, it is better to use sealed relays in the case.
• 🔘 Button: waterproof, with an indicator of inclusion.
• 🛡️ Safety: It is selected by the load power (usually 15-25A).
• 🔗 Connectors: It is advisable to use waterproof connectors.

Don’t forget about the fasteners. Bolts that come with a chandelier may be too short for your particular case, especially if there are gaps or pads between the roof and the base of the chandelier.

The installation process of lighting equipment

Installation begins with fitting. Install a chandelier or bar on the roof, make sure it stands flat and does not interfere with the opening of doors or hatch. Mark the mounting holes. If the design involves mounting in regular holes (for example, in rails), the task is simplified. If drilling is required, act with utmost care.

When drilling the roof, be sure to use a centric drill, and then expand the hole to the desired diameter. The edges of the hole must be immediately treated with an anti-corrosion composition to prevent the appearance of rust. The most common mistake is the lack of sealing of the attachment places, which leads to leaks into the cabin.

⚠️ Warning: Before drilling, make sure that hidden wiring or body reinforcement elements do not pass under the drilling site, which may be damaged.

After the physical installation of the body, it is the turn of electrics. Wiring is best to run through standard technological holes, often they are in the area of racks or in the lamps of the cabin lighting. The wire must be securely fixed by clamps to exclude vibration and rubbing on the sharp edges of the metal.

Connection to the onboard network is carried out through the relay. "+" from the battery (through the fuse) goes to one contact of the relay, the second contact of the relay goes to the headlights. The third contact of the relay (control) is connected to the button in the cabin, and the fourth – to the mass. This system ensures the safe operation of the system.

Connection diagram:
Battery (+) -> Safety -> Relay (Contact 30)
Relay (contact 87) -> Headlamp (+)
PHARA (-) -> Mass (body)
Relay (Contact 86) -> Button -> Mass
Relay (contact 85) -> Mass

After assembling all connections, be sure to test the system before the final wiring is laid under the skin. Check the operation of all modes, the lack of heating of wires and the reliability of fixation.

Light beam adjustment and adjustment

Just to screw the headlights is not enough – they need to be properly configured. Incorrect adjustment can lead to the fact that you will blind drivers in front of the cars, even if only the passing light is turned on, or the light will illuminate the sky, not the road.

Adjustment is best carried out in the dark on a flat area in front of the wall or garage doors. The distance to the wall should be about 10 meters. On the wall, mark the horizontal line at the height corresponding to the center of the headlights and the vertical lines corresponding to their width.

For high beam (spotlights), the beam should be directed strictly straight and slightly above the horizontal line on the wall (about 5-10 cm at a distance of 10 meters). For passing beams (LED bars with a diffuser), the boundary of the light shade should be clear and be below the center of the headlights, so as not to strike in the eyes of oncoming drivers.

• 📏 Distance: Set up at a distance of 10-15 meters from the screen.
• 📉 Slope: the upper limit of light should not rise above the level of the headlights when loading the car.
• 🔄 Symmetry: The left and right sides of the light spot should be symmetrical.

If the headlights have adjustable focus, experiment with it to find a balance between range and coverage width. A narrow beam flies further, but illuminates a small area, a wide one - illuminates everything around, but at a close distance.

Maintenance and care of lights on the roof

Installed equipment requires regular maintenance, especially if you operate the vehicle in conditions of dirt, dust and reagents. Dirt on headlight glass can reduce the efficiency of light flux by up to 50%, turning a powerful spotlight into a dim flashlight.

Check the condition of the mounts regularly. Vibration when driving off-road can weaken even the most reliable bolts. Once a season, it is recommended to stretch the entire fastener and check the tightness of the connections.

Pay special attention to contacts and wiring. Oxidation of contacts is the main reason for equipment failure. If you notice that the light began to blink or dim, first check the "mass" and connectors. Use special sprays to protect electrical contacts from moisture.

In winter, watch for the formation of ice on the headlights. Although LEDs do not warm the body, snow and ice can accumulate and block the light. Carefully clean the surface with a soft brush, avoiding the use of sharp objects that can scratch polycarbonate glass.

How often should I check the wiring?

It is recommended to carry out a visual inspection of the wiring and check the contacts every 10,000 km of run or after each serious off-road exit. Pay special attention to the exit points of the wire from the headlamp body and the places of passage through metal partitions.

Can I wash a car with a chandelier installed on the sink?

Yes, if the equipment has IP67 or IP68 protection certificate. However, you should avoid directing the jet of high pressure water (Kercher) directly to the exit points of the wires and into the gaps between the glass and the housing at an acute angle, as this may violate the tightness.

Why is the light on the roof flashing?

Most often, this indicates poor contact in the chain (oxidation, weakening of terminals) or a malfunction of the relay itself. Also, the cause may be insufficient cross-section of the wires, which is why during heating the resistance increases and the current falls.

Do I need to remove the battery before installation?

Yes, in any work with the electrical wiring of the car, it is recommended to remove the minus terminal from the battery. This will eliminate accidental short circuits that could disable the engine control unit or other electronic systems.

Does roof light affect fuel consumption?

The impact is minimal. Even a powerful chandelier consumes about 10-15 Amps, which is not a significant load for a modern generator. However, the aerodynamic drag from the installed design can increase fuel consumption on the road by 0.5-1.5 liters per 100 km due to the deterioration of streamlinedness.