LEDs in the near. LED headlights low and high beam LED: photos, reviews

H7 LED bulbs are used in the automotive industry. They are installed instead of halogen and xenon analogs. Light sources based on diodes in any design (H3, H7, etc.) are characterized by high radiation intensity with a minimum level of energy consumption. Therefore, they are popular.

Device and principle of operation

Bulbs with base H7 represent a group of flanged lighting elements. Usually they are used when organizing low beam, much less often they are used as a source high beam... In general, such bulbs are intended for installation in four-beam systems of low and high beam.

Design features of a diode lamp with an H7 base

Light emitting diodes are used instead of filament in diode lighting elements with base H7, H3 and other versions. The dimensions of these lamps correspond to analogs with a filament body, therefore, the headlights will not need to be converted in case of replacement. Halogen bulbs require the use of a reflector to create a directional beam. LED lighting elements function on a different principle, since the emitters of this type provide directional light.

Therefore, in the construction diode bulbs several crystals are provided, arranged in such a way as to provide a certain directionality of the glow. In different lamps (H3, H7, etc.), the focusing of light is implemented in different ways.

The design of the H7 diode lamps provides for a wire with a driver, active system cooling (radiator with fan), an O-ring that is installed between the light source and the radiator, as well as the diode-based lamp itself. Due to the fact that the cooling system is independent node and is fastened by screwing, an additional obstacle is created for the outflow of heat. Thermal grease can be used to increase the contact between the lamp and the heat sink.

Main advantages

The principle of operation of lighting elements based on diodes with a holder h3, h7 and other versions is based on the passage electric current through semiconductor material. As a result, part of the electrons is knocked out of the total flux at the p-n-junction section of one of the plates and, colliding with the particles of the second plate, contributes to the formation of so-called holes. Chaotic collisions of electrons lead to the appearance of light energy, as a result, a lamp of any type (h7, h3, etc.) starts to glow.

Overview of technical specifications

Basic parameters of automotive light sources different models, including h1, h3, h7, etc.:

power;
light flow;
the amount of current consumed;
Colour temperature;
supply voltage.

Other characteristics may be presented depending on the type of lighting element. There are only three groups of lamps with h7 base: halogen, xenon, LED. The first option from the above has several significant advantages: low cost, correct radiation spectrum.

But the main disadvantage of such models is significant heating. Xenon light sources are more resistant to vibrations, as they do not contain a filament and provide a dazzling blue-white light. But their price is relatively high, and, in addition, the installation of an ignition unit is required.

Compare popular types of diodes

If we consider LED lamps in any version (h3, h7), then the parameters also indicate the size of the emitter. For example, the diodes of the new MT-G2 series of the CREE brand are characterized by a diameter of 8 mm. Based on this information, you can perform a test. LED lamps h7 in order to determine their quality.

Today, Chinese counterfeit diode light sources are often offered with inferior performance than branded products. Most often in similar situations discrepancy can be identified precisely by technical specifications.Chinese lamps are more powerful and brighter, the diodes in them are larger in diameter in comparison with CREE crystals.

Advantages and disadvantages of diode light sources

Such emitters have much more advantages than all analogues existing today:

The use of solid-state light sources in the design makes the lamp as resistant to mechanical damage and vibration as possible.
Long service life. Well-known manufacturers, for example, CREE indicate the period in the technical specifications effective work up to 15,000 hours. Usually, light emitting diodes last at least twice as long. But difficult operating conditions (heating from neighboring halogen lamps, ineffective heat dissipation) shorten the operating period.
High luminescence intensity.
The minimum level of power consumption.
The ability to install instead of halogen counterparts without modifications.

The best solution is to operate bulbs with an H7 holder, which have been installed in the specially designed optics of the car. But this is only possible in later vehicle models. More often, such lamps are used instead of analogs of another type (halogens, xenon). As a result, it is often difficult to focus the light. In addition, various LED products (h3, H7, etc.) are offered at a rather high cost.

If we compare them with analogs, then halogen versions are much cheaper, but they are characterized by significant heating, which additionally contributes to a reduction in an already short service life. These bulbs use an incandescent spiral, which means they are very susceptible to vibration and shock.

Xenon versions do not contain an incandescent body, which makes them more resistant to external factors... But for their normal operation, the installation of an ignition unit will be required. This confirms that in many parameters diode light sources (h3, h7, etc.) are superior to other types of lamps.

What to look for when choosing

First of all, you should study the characteristics of the product:

luminous flux - determines the level of brightness of the light;
color temperature - will provide the required degree of lighting comfort;
power;
life time;
supply voltage (12V, 24V), the presence of a driver makes the lamp universal;
type and brand of diodes;
compliance of the model, dimensions and base with the parameters of the optics of the car.

To ensure a sufficient level of brightness (1000-2000 lumens when choosing high-quality CREE diodes), the emitter power must be quite large - at least 12 watts. Therefore, the design provides for a radiator that allows you to effectively remove heat from the diodes. The glow temperature can vary from 4,000 to 6,000 K.

Issue price

Most of the offered LED bulbs different types(h3, h7, etc.) do not always provide lighting the right quality, which is especially surprising, since the product was selected based on its parameters. The fact is that only a few manufacturers guarantee full compliance with the declared and actual capabilities of lighting products. Among them: CREE, Osram, Philips, Narva.

By lighting performance the best way- Philips Luxeon MZ LED

The cost of such products varies from 500 rubles to 8,000 rubles. depending on the parameters of the product. Accordingly, more efficient models are more expensive. But the service life of lamps h3, h7 and other versions will be longer when compared with cheap counterparts. Such light sources are characterized by reliability and high quality crystals.

Testing of different versions of diode lamps has shown that in a number of parameters the leaders are CREE and Philips products of different lines. In terms of lighting performance, the best option is Philips Luxeon MZ lamps. Their price is quite high, but they provide very bright light(on a par with xenon) with warm shade... And during installation, there are no problems with focusing. But in such lamps a rather large radiator is provided.

CREE XM-L2 diode lamps also provide bright light similar to xenon, are offered at an affordable price, and have good focus. But there are also disadvantages, in particular, cold shade radiation even in standard light bulbs. In both considered options, only a few diodes are provided (2-3 pcs.).

LEDs are firmly embedded in our lives. LED lamps are used to illuminate apartments, cabinets, advertising objects, public places etc. Among other things, LEDs are actively used for automotive lighting.
In the course of progress, it turned out that LEDs can be more efficient at illuminating the road than conventional lamps. At the moment, h7 LED bulbs are becoming popular.
They are used for illumination in headlight systems designed for 4 light sources. There is also a condition that the reflectors of the high and low beam must be separate.
More often, LEDs are installed in low beam reflectors. H7 bulbs are flanged bulbs. One of their characteristics is the precise fixed distance from the flange to the helix. This indicator is one of the most important factors in evaluating h7 lamps.

Xenon
Halogen
LED.

We will consider specifically h7 LED bulbs.
According to many authoritative estimates, it is LEDs that are a promising line of development for h7 systems.

Why h7 LED car headlights?

There are a number of factors that determine the advantage of these lamps:
Economical
Long service life
Resistant to external influences
Constant spectrum of light

LED headlights made on the basis of matrix diodes. Their indisputable plus is that they consume much less battery power. You will be able to use them for much longer on a trip. This is very important if you make long trips frequently.
The h7 car LED headlights practically stay cool. This property is provided by the aluminum housing. Thanks to their low heat, h7 LED headlights last much longer.
There are also some disadvantages. Some h7 LED low-beam headlights do not produce as bright a light as halogen ones. This feature is compensated for by the uniformity of light throughout the entire operation of the LED headlight.
The light spectrum depends on your headlight. If the glass is smooth, the light will be focused and bright. But, unlike halogen and other types of headlights, LED ones do not change the brightness and color of the glow throughout the entire service life.
If you want to stand out on the road - the h7 LED headlights are exactly what you need.

Installation method

So far, the most justified is the use of h7 LED headlights in special optics. If you install them in conventional headlights, a number of difficulties arise. This is due to the difference in the principle of operation of different lamps. Conventional headlights are designed for halogen lamps, and the filament is in the exact place. LED bulbs are not a point source of light. They can be arranged in a circle. Therefore, it is difficult to correctly distribute the voltage across the LEDs.

Types of h7 lamps for low beam

Manufacturers take into account different needs and use lamps with different enhanced qualities:
Increased flux of light
More long term service
For any weather
More comfortable for eyesight.

Every car enthusiast wants his vehicle to stand out from the rest and have an attractive appearance... For this, some motorists perform whole tuning operations, installing body kits, fashionable disks, doing airbrushing, while others just need to put diode lamps of the H7 type in the dipped beam headlights. It is about LEDs in this article that will be discussed.

Pros and cons of led lamps for low beam headlights

Today there are two types of LEDs with increased effect. increased brightness the dipped beam is H4 and H7. Led bulbs of the H4 type, that is, xenon, are used in vehicles in which the design of high and low beam is combined. As for the H7 car LED lamps, their use is relevant in the headlights of cars characterized by separate designs for long-range and short-range views. If you are interested in led, then you will certainly be interested in the benefits that can be obtained as a result of their operation.

V recent times more and more Russian motorists choose diode led lamp, since they have the following advantages (the list of advantages and disadvantages was compiled as a result of tests of LED diode bulbs with an increased brightness effect):

Profitability. As a result of the fact that LED light bulbs are characterized by low energy consumption, their operation contributes to the economy of work. Accordingly, when using the module led led light bulbs with increased brightness effect, as shown by the test results, the driver can save a charge battery, as well as a certain amount of fuel.
Increased service life. According to reviews and test results, unlike halogen and xenon H4, LED diode bulbs have an increased service life. Accordingly, buying a set of LEDs, the driver can save a little.
Ability to function at any temperature. Unlike xenon H4, the test showed that LED diode bulbs have no problems, and most importantly, they function stably in any temperature regimes- from minimum to maximum.
Suitable for use in plastic headlights. As a result of the test, it turned out that LED diode bulbs with an increased brightness effect can be used in plastic headlights, since they practically do not heat up during operation. As the reviews show, the use xenon lamps H4 is not always advisable in this case.
Providing the lantern with a stable light beam. Both xenon and LED diode bulbs with increased brightness effect provide a stable light beam for the vehicle low beam. Comparison of xenon H4 and LED diode bulbs H7 was carried out during the test.
Light pleasing to the eye. In general, LED diode lamps have a pleasant and comfortable white light.
The car enthusiast has the ability to create adaptive lights. As the test results showed, this can also be done for H4 xenon cells, but the installation procedure will be more complicated, and in general it will be much more expensive. As for halogen bulbs, this will be impossible in principle.

Both xenon H4 and the best LED diode lamps have certain disadvantages, which we will discuss below:

The cost of the best LED module kit is quite high, therefore, not every motorist can afford such optics.
Even the kit of the most best lamps is unlikely to be able to give an accurate light. As the test results show, as well as reviews of motorists, the luminous flux from the device is directed downward. Accordingly, the illuminated distance in front of the vehicle, in contrast to H4 xenon lamps, is halved. In order to properly install and adjust the optics, it is necessary to use specially designed lenses.
If you buy a kit with a module of not the best LED, then you may face the problem of poor assembly of devices and lack of protection. As a result of the lack of protection, they will have poor heat dissipation, which will lead to overheating of the element and its possible flickering.
As the test results showed, when buying a set of car LED lamps H7 in low beam headlights, you can face a problem of different directions. luminous flux... Sometimes in one set there are elements in which the diodes themselves are installed unevenly. Accordingly, during installation, they will shine in different ways.
When buying a kit, it is not necessary to pay attention to the brightness level. As the reviews show, Chinese manufacturers often write big numbers on packages in order to interest the consumer. But in fact, the brightness level indicators are usually rarely true.
When buying a set of devices, be prepared for the fact that you will face the problem of lack of focus as a result of the fact that the LEDs themselves are not installed correctly. In this case, everything depends on the manufacturer, but today it is the Chinese manufacturers that dominate our market.
In fact, the power of the optical elements for the dipped beam can be significantly higher than the declared one, especially since the driver will be additionally used (the author of the video is sandronovecento76).

Characteristics of diode light sources H7

LED car lamps type H7 are intended for operation, as can be seen from the photo, in headlights with four autolamps, that is, in optics, where the high and low beams are separated from each other. High-quality xenon H7 allows you to provide a constant, and most importantly, a constant level of distance from the flange itself directly to the light component. The latter, by the way, as can be seen from the photo, is used instead of the filament. These autolamps allow you to provide correct light, which will provide the most optimal view road surface and will not dazzle oncoming drivers.

It is necessary to make a reservation about the last parameter. You will not dazzle drivers driving towards you only if you install a set of high-quality auto lamps on your car. In an effort to save money, many car enthusiasts today buy cheap optical elements, resulting in discomfort to other drivers. In the device of a set of high-quality autolamps, a system of matrix diodes is used - thanks to this, energy resources will be used more rationally. It should also be noted that H7 LED auto lamps can be used not only in low beam optics, but also in fog lamps.

Now let's move on to the main technical characteristics of the sources. When buying car lamps for his vehicle, the driver should focus on certain parameters... If these indicators do not match, then achieve quality lighting the road will be impossible.

So, what parameters are we talking about:

the brightness parameter for the high beam should be at least 1500 lumens;
the brightness level for the dipped beam must be at least 1 thousand lumens;
as for power, this figure should be around 14 volts;
so as not to run into possible problems in the future, it is desirable to use optical elements equipped with a special cooling system (the author of the video is the HID channel).

Features of the choice of LED bulbs for near-field headlights

So, if you have a need to purchase a set of high-quality LED bulbs, then in order to buy the most reliable optics, you need to take into account some requirements. As you might have guessed by looking at sites on the Internet with photos and videos, as well as offers from various stores, the market currently offers customers a huge range of such products. How difficult it is sometimes to choose quality product, which will provide optics with high-quality lighting.

Therefore, the main thing is not to make mistakes when choosing. To do everything right, you need to know certain selection criteria, you should definitely familiarize yourself with them. Below is a basic list of parameters to look out for when purchasing H7 LED bulbs.

At first, it comes on compliance with all requirements, norms and standards. Before buying, you should carefully read the service book for your vehicle. Often in the instructions for the operation of the car, manufacturers indicate all the points that a motorist should know about when choosing optics or bulbs. The main thing is that after installing xenon in the vehicle, problems with the power and overload of the system do not begin, otherwise the xenon will have to be removed. It is very important that technical specifications purchased optics corresponded to the parameters of the car (video author - Test Lab tests Autolamp).

The brightness level of the light as well as the color of the spectrum. As you might guess, it is desirable that the brightness level is the highest. The choice of the brightness level is also carried out according to the requirements of the vehicle. As for the color of the spectrum, everything is individual here - choose a color according to your taste. It all depends on the preferences of the motorist, but usually our motorists choose either white xenon or blue.
Light beam size. This indicator is one of the main ones, since it will depend on it how much the road will be illuminated in front of the vehicle. The larger the light beam, the better the illumination will be.
Stability of light bulbs. As you can imagine, in this case, a lot depends directly on the optics manufacturer. Before buying, we recommend that you carefully read the reviews of motorists left on the Internet. If this or that model is not particularly high-quality, and you have noticed negative reviews about it, then it would be better to refrain from buying.

Xenon car bulbs are a promising type of lighting in a car, but when buying devices for yourself, you should not be guided by the manufacturer alone. After all, everyone knows that among well-known brands, defective products periodically come across, and the Chinese have recently begun to make more or less high-quality optics. But usually well-known companies value their reputation, so they usually have much less marriage.

Of course, when buying components, you should not be guided by price alone - you should not wait good lighting expensive from cheap lamps. The choice of LEDs must be approached with all responsibility, since the illumination of the roadway at night determines the safety of the motorist as a whole. So opting for more expensive and quality options optics, you can be sure that the overview of the road surface will be on high level at night.

Conclusion

LED elements for optics are characterized by high efficiency, ease of use, as well as a long service life. In addition, thanks to the excellent operational characteristics LEDs are becoming more popular. However, the main reason why diodes are not yet installed in every car is the high cost of the elements. Moreover, in order to achieve the desired effect, the optics of the vehicle must be additionally equipped with lenses, otherwise it will be impossible to adjust the light.

Video "Review of LED bulbs H7"

A detailed review of LED bulbs from China is presented in the video below (video by Evgeny Novikov).