Comparison car Bulbs

The type determines the operating principle of the auto lamp and its design features.

— Incandescent. In this case, we mean traditional incandescent lamps, not related to “halogens” (see below). The bulb of such a lamp is filled with an inert gas or vacuum, and the light is provided by a red-hot filament of refractory metal. The main advantage of such light sources is their simplicity and low cost. At the same time, both in terms of efficiency and performance parameters such as brightness and service life, they are inferior to more advanced varieties, therefore, in general, they are considered obsolete and are used extremely rarely for headlights - the main area of application for incandescent lamps is auxiliary lighting and the instrument panel (see. "Destination")

— Halogen. A specific type of incandescent lamp (see above), differing in the composition of the gas in the bulb - it contains halogen vapor, usually bromine or iodine. This allows for greater brightness, increased efficiency and lifespan, while reducing size and power consumption - all without significantly increasing cost. True, in terms of efficiency, such lamps are still inferior to LED models; on the other hand, halogens provide a more natural glow and are better suited for working over long distances. Thanks to this combination of characteristics, this particular type of lamp is the most popular as a head light (see “...Purpose”); and although xenon lamps are more diverse in the number of models, halogen lamps surpass them in the overall frequency of use.

— Light-emitting diode (LED). LED lamps are notable primarily for their extremely high efficiency, which allows them to achieve high brightness with low power consumption. True, such models are highly expensive, and the color of their glow is “colder” and less natural than that of incandescent lamps. LED lamps are more expensive than halogen lamps, but they are superior in energy efficiency, which helps save fuel. Therefore, in the role of head light (see “Purpose”), this type of lamp is becoming more and more common, gradually replacing halogen lamps. And in auxiliary lighting, “LEDs” are perhaps the most popular variety. We also note that among such lamps there are models that can work with both operating voltages - 12 V and 24 V; See "Voltage" for details.

— Xenon. Classic xenon lamps that have one operating mode (unlike bi-xenon, see below) and are designed for cars where two separate lamps are used for low and high beam. In all xenon auto lamps, the bulb is filled with the inert gas xenon containing pairs of specially selected metals, and the light source is an electric discharge in the environment of this gas. Such models are quite expensive and complex in themselves; in addition, to operate they require a special ignition unit (see below), and it is not always supplied. On the other hand, due to its high brightness and efficiency, xenon is considered the most advanced type of headlight lamps (see “Purpose”); such lamps, among other things, are popular among fans of external tuning. This variety is not used in principle for auxiliary lighting.

— Bi-xenon. Xenon lamps (see above), which have two operating modes and are capable of providing both low and high beam. The exact method for switching between modes may vary. Thus, some models use a movable reflector that changes the characteristics of the light beam; in others, two xenon capsules are installed in one flask; in others, two separate bulbs are used, etc. You should pay attention to this option if both the low and high beam in the headlight are provided by one lamp. Such models are not cheap - more expensive than the xenon/halogen alternative (see below) - but they are used much more often due to their more advanced characteristics.

— Xenon/halogen. Combined lamps having two separate bulbs: xenon for low beam and halogen for high beam. For more information about each of these types, see above; and this option is an alternative to bi-xenon (also see above) for cars where one lamp is responsible for the low and high beam. Xenon-halogen lamps are noticeably cheaper than bi-xenon lamps, and are inferior in efficiency mainly when using high beams. On the other hand, the xenon part usually has a shorter service life than the halogen part, and if it fails, the entire lamp will have to be replaced. In addition, the bulbs may not be located on the same axis, which in some cases causes problems with adjusting the headlights; and the heat generation during operation of both bulbs is quite high and in some cases can even lead to damage to the headlight. As a result, there are significantly fewer combination lamps on the market than bi-xenon lamps.

Number of lamps included in delivery.

The headlight lamps (see “Purpose”) are paired and can be supplied either one or two at a time - the latter is ideal if you need to install or replace both lamps at once. Also, paired configurations can be found in models for auxiliary lighting, and sometimes such lamps are supplied in sets of 10 or even 100 pieces - this can be useful, for example, for installing side lights on a bus or truck. But the dashboard lamps are sold exclusively one at a time.

The type of base used in the lamp.

The base is the contact part of the lamp, which is fixed in the socket and is responsible for fixation, electrical connection and the possibility of safe removal. Thus, the type of base directly determines compatibility with a particular cartridge. However, in addition to this, there is also such a parameter as the base of the base. It determines primarily the contact configuration used on a particular base. And in our paragraph it is written as the second value.

In lamps for different purposes (see above), the set of bases used is very different. So, for the head light the following options are used: D1S, D1R, D2S, D2R, D3S , D3R, D4S, D4R, H1, H2, H3, H4, H7, H8, H9, H10, H11, H13, H15, H16, H27W /1, H27W/2, HB1, HB3, HB4, HB5, HIR2, HS1, M5, R2. For markers and other similar lights, in particular, C5W, C10W, C15W, H21W, H6W, P21W, PY21W, P21/4W, P21/5W, P27/7W, PR21W, R5W, R10W, T4W, W5W, WY5W, W16W are used , W21W, WY21W, W21/5W.

If desired, you can find a detailed explanation of each designation in special sources.

The power normally consumed by the lamp during operation. This parameter is often used to evaluate the overall brightness of the glow, especially in the case of lamps for headlights (see "Purpose"): such a specific parameter as the luminous flux, firstly, is less familiar to ordinary car owners, and secondly, in its characteristics are not always indicated. However, it must be remembered that only lamps of the same type (see above) can be compared with each other in terms of power consumption. different types can differ markedly in efficiency and luminosity. But what this indicator directly affects is the power consumption of the lamp and, accordingly, the load experienced by the generator or battery. Modern car lamps have a power of up to 100 W, such power consumption is normally tolerated by the on-board network in normal operation. However, the lower horsepower provides some fuel savings.

Operating voltage of the auto lamp.

In different types of equipment, the voltage of on-board networks is also different. Therefore, car lamps for passenger cars are designed for a voltage of 12 V, and car lamps for trucks(and other similar equipment, such as buses) are designed for 24 V. However, there are also more specific options:

— 12/24 V. Lamps with the possibility of use in both types of on-board networks - both passenger cars and trucks. This versatility is found mainly among LED models, as well as in some types of xenon (see “Type”): these types of lamps are equipped with control circuits that can automatically adjust to the on-board network voltage.

— 85 V. Value found in models with xenon operating principle (see “Type”). In this case, we mean the voltage supplied to the lamp from the ignition unit (see below); the ignition unit itself is connected to the on-board network and is usually designed for 12 V. Data on the operating voltage of the lamp itself may be needed if you need to select a separate ignition unit for it.

- 40 V. Another option for increased voltage in xenon lamps; the meaning is completely similar to the 85 V described above, but is much less common.

Luminous flux produced by a car lamp; for dual-mode models like bi-xenon (see “Type”), the value at maximum brightness is indicated.

This parameter characterizes the actual brightness and efficiency of the lamp; it can be used to directly evaluate and compare different models, regardless of their type and power consumption (but only at the same color temperature - see below for more details). The brightest are headlight lamps (see “Purpose”), in them this indicator can exceed 4000 lm and vary noticeably from model to model. Therefore, when choosing such a lamp, you should pay special attention to the characteristics of the luminous flux. It should be borne in mind that too bright headlights are just as undesirable as too dim ones: high brightness creates not only the risk of dazzling for oncoming cars, but also discomfort for the driver himself. Optimal luminous flux values can be indicated in the documents for the car or for the headlight itself; if such data is not available, you can turn to other special sources.

As for other types of lamps, in models for auxiliary lighting the luminous flux is up to 800 lm, and in lamps for the instrument panel - up to 55 lm. Moreover, in both cases, the brightness is selected by the manufacturer taking into account the specific specialization and location of the lamp, so in such models this parameter is not a key one.

Guaranteed lamp life according to B3 standard. In fact, this is the longest time that the lamp can continuously work with a 97% guarantee (it is impossible to provide a 100% guarantee in principle). This parameter is measured as follows: a test batch of lamps is used until 3% of them fail, the resulting time is indicated in the characteristics.

Other things being equal, longer-lasting lamps naturally cost more, but longer service life compensates for this disadvantage. Separately, we note that you should not confuse the guaranteed service life with the manufacturer's warranty — the conditions and warranty period may be different even for lamps with the same B3.

The level of increased brightness provided by the lamp. This indicator is used by some manufacturers for marketing purposes: it describes how brighter a given model is than some "standard lamps". At the same time, the standards for comparison may be different, and impressive figures (in some models reaching 140%, that is, almost 2.5 times) are not always reliable — that is, a high-brightness lamp will not necessarily be just that much brighter than the “normal” model of the same type and power.

Standard lamp glow color.

It is worth considering that in this case we do not mean the own shade produced by the lamp (see “Color temperature”), but the light that will be produced “ultimately” during normal use of the lamp. For example, in auxiliary models (see “Purpose”) intended for brake lights, the glow color is usually indicated as red - this is the standard color for “stops”. In this case, the lamp itself can have a color temperature of about 4000 K (neutral white). Similarly, models used in fog lights can be yellow, in turn signals - also orange, etc.

If we talk about the head light, then it is most often made white, and in such models the shade can be determined by the color temperature (see above). If the characteristics of the “head” lamp indicate a different color, this most likely means that it has a painted bulb, and the light produced by the headlights will have the same shade. Note that we are talking specifically about shade, and not about full-fledged light: for example, purple lamps will illuminate the environment with white light with a slight bias towards cool colors. At the same time, such lamps themselves will look purple. Such features are useful primarily for external car tuning.