The color temperature (CT) characterizes the composition of the light spectrum emitted by the source. CT is easier to assess at the level at which it perceives a person. If you connect a conventional incandescent lamp through a rheostat to a power source, then a clearly visible red glow of the spiral starts at 900 ° C. Since radiation depends on the motion of atoms, the count starts at absolute zero on the Kelvin scale, which is -273 Celsius 0 C. Therefore, the Kelvin scale is used to estimate the color temperature.

Kelvin Temperature Scale

The figure shows the Kelvin temperature scale, which shows the color of the radiation corresponding to the color temperature.

If we evaluate the beginning of the glow of an incandescent lamp on this scale, its color temperature will be 1200K. When heated to 2000K, the filament becomes orange, and at 3000K, the filament turns yellow. It will burn at 3500K due to melting of the tungsten helix. If the melting point were higher, then at 5500 K the helix would emit a white color, and at 6000 K the blue would be white. Later, the color of the radiation would approach the violet boundary of the spectrum. This DH corresponds to 18000K.

The DG of incandescent lamps completely reflects the degree of their heating. But the color temperature of the LED lamps does not depend on the degree of heating of the crystals. If the temperature of the filament is in accordance with 2700K, then the LED with this radiation is heated only up to 80 ° C.

Peculiarities of color perception

People perceive colors strictly individually. Each individual correctly distinguishes blue, red and yellow colors, but the shades differ significantly. The color identification depends on the age. The lens eventually turns yellow, but information on color perception may also be distorted for other reasons.

Color Rendering Index (CRI)

Color rendering is the degree of correspondence of the visual perception of the color of an object when it is illuminated by a standard light source (sunlight) and the subject. The index or color rendition coefficient CRI is measured in numbers and its maximum value is taken as 100. With the increase in the accuracy of color transmission, when the lamp is illuminated, the index becomes higher and approaches this value. The figure shows the same object under different lighting, where on the left side the color is most accurately transmitted.

Object type with different color rendition

Practical applications find the following categoriesCRI:

1. 100 - maximum, corresponding to the perception of the color of the observed object when illuminated by the sun's rays or an incandescent lamp.
2. 100\u003e CRI\u003e 90 - the color-transmitting properties remain high. It is used wherever accurate color transfer is important.
3. 90\u003e CRI\u003e 80 - the color reproduction remains good, but its high accuracy is not the main goal.
4. 80\u003e CRI - low color quality (corridors, utility rooms, roads).

The color is not distorted when the subject is illuminated by the sun's rays and some incandescent lamps. These sources are standard. The figure shows the color rendition coefficients of different lamps and shows the color temperature scale, between which there is no direct connection. The first characteristic reflects the correctness of the display of colors, and the second - the color temperature.

CTS and color rendering indices of various light sources

Lines of communication from lamps of different types with a color temperature scale show the numerical value of the CG, and with the CRI index the quality of the color rendition. For these combined characteristics it is convenient to select lamps for a specific purpose.

Choosing hues for CG

If for a spiral of tungsten the limit is 3500K, then the LED lamp can create a CT 5500K and higher, up to the violet spectral region. At the same time, it will not overheat. The figure shows the table of shades of LED lamps indicating the area of ​​their application.

Table of shades of CG and the field of application of LED lamps

Workplace lighting

The natural light wears the eyes least of all. Daylight is the most useful (4200-5500K). For reading, working at the computer and other activities at the desk, table lamps F0204 and F3034 on LEDs are suitable, creating white light, the shade of which can be cold or warm. This light is optimal for working with documentation, drawings, collectible exhibits, handmade items.

The LED lamp creates a dense light flux, is economical, resistant to external influences and durable. It is important for successful operation that the inclusion is accompanied by a gradual increase in brightness, and the luminaire incorporates a sensor sensor that allows it to be adjusted.

For cabinet work, you need a top light. Comfort creates ceiling light sources with LEDs. For the house suitable model 91854-AU, which can be mounted on the tension and suspended ceilings. The luminaire does not emit much heat and is fireproof.

The office also uses table lamps, but requires additional illumination from powerful LED ceiling panels, for example, LP 600 × 600. The device can serve as the main and additional lighting. LEDs give a soft and uniform light, noiselessly work and do not emit ultraviolet. The panels are connected to the 220 V network.

House lighting

1. Soft white / warm white (2700-4200K). Well suited to the bedrooms and living rooms, creating a feeling of warmth and comfort. This light can be used to illuminate the dining area.
2. Bright white / cold white (5000-6500K). Suitable for workshop, garage, kitchen, bathroom. Creates an energetic and cheerful mood, as well as a sense of purity.
3. Daylight (4000-5000K). Creates the maximum contrast between colors. Suitable for kitchen, bathroom, cellar.

Brightness and CG in perception of light

The Dutch physicist Kruitof established a relationship between the level of illumination and the color temperature. A light bulb with a color temperature of 2700K and an illumination of 200 lux creates a comfortable light. But the lamp, whose power is 2 times higher, already begins to irritate, and the light seems too yellow.

Researchers believe the claim that a LED lamp with a cool spectrum is better suited for offices, and warm - for the home, not quite true. For a full evaluation, it is important to consider the brightness of the light source. Getting from a brightly lit street to a room or vice versa, people see the colors somewhat distorted, which is due to the decrease in the level of illumination in dozens of times, which affects the sensitivity of the eyes. Designers should consider the influence of lighting on the adaptation of the eye to changing external conditions.

LED Light Bulb Selection

The semiconductor crystal of the LED is coated with a phosphor layer that creates visible light, the color temperature of which depends on its composition. The photo shows a lamp with LEDs, where a layer of phosphor is highlighted in yellow. The number of crystals in one lamp can be more than a hundred. They are formed into groups on the boards and consistently fed.

So it looks like a lamp with LEDs

Researchers have determined the importance of choosing an LED lamp that affects the working capacity of people in the illuminated room. The highest performance is achieved with neutral white light of 3500-4500K. Its displacement from natural light in the "warm" or "cold" side of the colorimetric scale reduces the performance. The yellow region of the spectrum creates a comfortable environment, but at the same time reduces performance at 3000K to 7%, and at 2500K - to 25%. When the DH is raised to a "cold" color (6000K), the performance first increases, and then falls by 25% due to high fatigue.

This assessment of the effectiveness of DH is not always correct. For workers working on machines, the shift of lighting to the cold area helps to increase the concentration of attention during work. Also, a positive result gives the most "cold" coverage in hospitals and laboratories, where you need to concentrate as much as possible in a short time.

Warm and soft light when shifting the spectrum even to 2500-2700K is preferable in restaurants, theaters, reading rooms and living quarters. It reduces fatigue and disposes to rest, although the concentration drops somewhat.

In the kitchen and bathroom, a shift to the cold light creates a sense of purity.

Kitchen lighting with LED lights

When decorating shop windows, marketers create warm light in places where bread, vegetables, cheese, fruits, fish are sold. And flowers, dairy and meat products should be lighted in the cold spectrum, which gives a feeling of freshness.

Household appliances with equipment have neutral lighting or a slight bias in the cold side of the spectrum. Furniture, cosmetics and bedding are sold better when they are lit by warm light. To emphasize the functionality of a particular room or zone, there are tables in it, how to choose the right lighting.

Choice of temperature. Video

How to correctly select the color temperature of the Verbatim lamp, tells the video below.

LED light should be selected for comfortable color temperature for rest or work. White light, close to the natural light, is favorable, and offsets are made towards the cold or warm spectrum.

Color temperature is inextricably linked with brightness and color rendering index. Select the lamp follows with the best combination.

One of the parameters that can characterize the shade of color and its quality is the color temperature of the LED lamps. This parameter partially characterizes the level of brightness of the lighting device. When you need to see what color temperature. After all, if the LED light is picked up incorrectly, it will lead to a lack of comfort in the room. Next, we will deal with the readers of the site how to choose this indicator correctly.

Color Temperature Range

The color temperature had not previously had a significant value, since an incandescent lamp was used, in which this parameter was standard. As soon as there was a diode lamp or tape from LEDs, the color spectrum expanded and choosing the right LED light became more difficult, since its hue is determined by the semiconductor material. The table below indicates the range of the characteristic under consideration (in Kelvin):

There are three ranges:

• warm white light (2700 - 3200);
• natural, day time (3500 - 6000);
• cold (from 6000).

How to choose the right glow for the street or for the house? For the office, the most acceptable is a lamp that has a color temperature in the range of 2,800 to 6,600 K. For example, an incandescent lamp refers to the first group. This gives comfort and coziness. For work, natural daylight is optimal.

Optimum value

Office

For work, it is recommended to use LED light, which is in the range from 4400 to 5600 K. And this means that the light bulb should be white or neutral color. Due to this, the working capacity of employees will be maximum. Below is a table, through which you can choose the optimal value:

What does the color change affect? If the color temperature is different (yellow, blue or orange hue), then the performance and, as a result, the productivity of the employees is reduced. If the LED light has an orange hue, then the performance is reduced to 80%.

Important!  Why is the neutral or white light lamp more optimal for operation? Because it contains a blue spectrum, which assists in speeding up the reaction and concentrating attention during the daytime.

For office premises and for production, such LED light will be the most optimal, as it increases productivity and efficiency.

Residential area

But how best to match the color temperature of LED lamps for a house or apartment? For example, a light bulb that has a blue spectrum is not used in sleeping rooms (children's or bedroom). In the apartment house or apartment, the color temperature is selected individually for each room.

So the lighting temperature for the living room or bedroom is selected with the view that the LED lamp illuminates in a warm white range (2700 - 3200 K). Glow of this level gives the room a cozy and comfortable.

The bathroom is equipped with a daylight and white lamp (4000 - 5000 K). For the kitchen, such a light bulb also fits. This spectrum of radiation is suitable for home study or for reading, and can also be used as a plant shelving.

What else is important to know?

The intensity of light depends on several values, but there is no direct relationship between the spectrum and the degree of brightness. But this value though is not considered the key, but it sets the effectiveness of the glow itself. For example, a lamp that has the same power, but a different radiation spectrum provides a different intensity of glow.

The explanation is very simple: a light bulb with LED light in a range of high values ​​from 6000 K (cold shades), gives the opportunity to get the brightest light. But this works if the parameters such as power level and diode type are equivalent.

Do not forget about the natural process of reducing the intensity of luminescence (turbidity of crystals). This is the so-called degradation, when after a certain time the lighting devices become weaker and less effective. In order for the light source to last longer, it is necessary to purchase products of proven brands. About we told in a separate article.

Based on this, it can be concluded that the color temperature of LED lamps is considered one of the main indicators in modern lighting. If you do not take it into account, then the lighting system will be inefficient and unpleasant.

If the room is used for different purposes, then there are separate recommendations, with which you can choose the most optimal lighting option. For example, it is better to equip the living room, bedroom and children's room with sources that will radiate warm light.

So we examined what the color temperature of LED lamps means and which is better for a house, apartment or office. We hope that the provided tables and tips helped you determine the most optimal characteristics!

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In everyday life it is widely believed that artificial light can be "warm" and "cold." We are talking, first of all, about the shades of radiation. The concept of "light temperature" (or "color temperature") is really important for the lighting design in the interior. But is it really cold "cold" shades of light? And how to choose the temperature of light for a particular room? Let's understand.

What is the color temperature measured in?

This concept refers to physics. Scientists have long established that each color has its own "temperature", which is measured in Kelvin (K). This parameter indicates the packaging of the lamps. Zero color temperature (0 Kelvin) has an absolutely black color (black body).

• Dark red tint will acquire an absolutely black body if it is heated to a temperature of 800 K (corresponding to 527 ° C).
• Bright red color  corresponds to a temperature of 1300 K (or 1027 ° C). In real life, this phenomenon can be observed when certain metals are heated.
• Orange color  - 2000 K (or 1727 ° C). Such a light gives a candle or hot coals.
• Yellow  - 2500 K (or 2227 ° C). It can be observed at sunrise.
• White color  - 5500 K (or 5227 ° C). It corresponds to the color of the sun at noon.
• Blue  - 9000 K (or 8727 ° C). This is the color of the thermonuclear reaction, which in life is almost impossible to see.

Fact number 1.  As you can see, in fact, those colors that are considered "cold" in life (white, blue), are obtained from the most hot bodies.

It is worth noting that the lamps do not heat up  to such temperatures, and the value in Kelvin is a comparative conditional indicator.

How does it work in everyday life?

This temperature principle works in the production of light sources and their choice for use in interiors. All lamps have a certain temperature.

When choosing light sources, you need to know what temperature corresponds to a particular shade. For some areas in the interior designers recommend using lamps of the appropriate color temperature.

Fact number 2.  For certain zones in the house or apartment, as well as for specific situations (for the living room - the reception of guests, a romantic dinner, etc.), select the light sources with the most comfortable shade and the corresponding color temperature.

Color temperature of light source and its perception

By combining light sources with different temperatures within the same room, you can change the color perception of objects in the interior. But do not get carried away! It is important to monitor the harmony of colors, because otherwise you can get a "color disco" that will irritate your eyes. And an unsuccessful decision will show the taste of the owner of the apartment not from the best side.

• Red color can be mitigated due to a warm orange shade of light (2500-3000 K).
• The orange color (intense) turns into soft and pastel with the help of a warm yellowish shade (3000-4000 K).
• Yellow color will become gray and expressionless if you use lamps with a bluish tinge (5000-6500 K).
• Green color can be softened to light green with a warm orange light or to give a shade of a sea wave, using a bright bluish light.
• Blue colors will most adequately transmit light sources of a neutral white hue.
• Violet in the yellowish shade of light turns into red, so it is lit with high color temperature.

Having made a mistake when choosing a lamp of a certain color temperature, you can significantly change the color perception of the interior.

Fact number 3.  Our eyes distinguish about 10 million different shades, so the lighting directly depends on how we will perceive the color of interior items.

What is the color rendering index?

Light can change the brightness and saturation of colors in the room. This phenomenon is called metamerism.

Each lamp has a certain color rendition, which is indicated on the package by the index R a  (or CRl). This source parameter is determined by its ability to transmit the colors of the illuminated object as accurately as possible. The best result you will achieve using lamps with a color rendering index from 80 R a and above. This will allow all the colors of the interior to look most natural.

Fact No. 4.  Different types of lamps, having the same color temperature, can transmit colors in different ways. The color rendering index determines the degree of color deviation of the interior from its present when illuminated by a particular lamp.

Color temperature and our emotions

The temperature of light can directly affect a person's psychological state. So, warm orange  and yellowish  shades are best used for the morning, as they contribute to mild awakening, tune in a positive way and stimulate activity. Also these shades are good for use in the evening because of their soothing effect.

Light sources with neutral white  Ideal for rooms where they spend a lot of time, they work for a long time. Such shades correspond most to the midday sunlight, therefore the organism perceives such illumination as a signal to active activity.

Lamps with a high color temperature can not be used for a long time, since they have an extremely activating effect on the human psyche. With short-term use, this light stimulates the body. And with a long-term reverse effect is possible - inhibition, depression.

With a low level of illumination (little light), a person feels better at "warm light" (T cv = 3000 K), and if the illumination is high (\u003e 700 lux), then there will be discomfort and pain in the eyes. And vice versa: Т цвв = 5000 К - it is comfortable from 700 lux to 2500 lux, but at illumination less than 150 lux the light will be perceived alarmingly (moonlight).

The fact number 5.  The temperature of light affects the psychological state of a person, creates a certain atmosphere in the room, activates the work of the body or, on the contrary, relaxes.

The human eye is designed in such a way that it can detect the slightest deviations in the color temperature. And their range is extremely wide - from 2500 to 10,000 K. Changes in this indicator affect our emotional and psychological state, work capacity. That is why when creating a harmonious and comfortable lighting, you can not neglect the facts given in this article.

In future publications we will introduce you to the equally important features of the lighting design that will allow you to create comfortable and aesthetic interiors. to update our blog and get ideas for your work!

colorful temperature  (Figure 1).

The result

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Colorful temperature

The main sources of light in nature are heated bodies. For an absolutely black body, the spectrum of visible radiation, which depends on the heating temperature, measured in Kelvin (K), is termed colorful temperature  (Figure 1).

Absolutely black body - a physically idealized object that absorbs all radiation, does not reflect anything, but can emit its radiation.

Fig. 1 - Radiation of an absolutely black body

A similar effect can be observed when the metal is heated, which at different temperatures has a different color of luminescence. In the beginning it will be dark red, then red, then orange, then white. So the smith can visually bring the heating of a certain metal to the required temperature (Figure 2).

Fig. 2 - Glow of heated metal

On the use of this property, the principle of the electric incandescent lamp is constructed: an electric current is passed through a thin tungsten wire, as a result of which it heats up and emits radiation in the visible spectrum. Moreover, the color of the glow can be estimated quite accurately depending on the heating temperature: ~ 600 K - dark red hue, 1000 K - orange, 2000 K - yellow. Radiation from the surface of the Sun, due to thermonuclear reactions, has a temperature of about 6500 K, which is perceived by us already as white. The star of the Vega has a color temperature of 8000 K to 1000 K and is perceived as white-blue (Figure 3).

Fig.3 - The color temperature of an absolutely black body

Since for different bodies, depending on the chemical composition and physical properties, heating to a given temperature gives a slightly different spectrum of radiation or may be different (for example, fluorescent lamps), then a correlated color temperature is used. It corresponds to the color temperature of the color of an absolutely black body, similar to the color of the light source in question. In this case, the composition of the radiation and the physical temperature, as a rule, differ.

In photography, just the correlated color temperature is meant, which allows you to accurately describe the color of any light source.

Causes of color temperature changes

The color temperature depends on the physical properties and the radiation spectrum of the light source: for incandescent lamps - from the operating mode, design, operating voltage (Table 1); for the sun - from the geographical position, time of day, the state of the atmosphere (Figure 5).

Table 1. - Correlated color temperature of some natural
  and artificial light sources (Figure 4)

Fig. 4 - Relative spectral distribution of different phases of daylight
1 - light from the summer cloudless sky (8000 K); 2 - light from the cloudy sky 6000 K; 3 - light of the summer midday sun (5400 K); 4 - light of the sun one hour before sunset (3500 K).

As can be seen from the graph (Figure 4), the most uniform distribution of the light flux over the spectrum is observed in sunlight at noon (curve 3). The light from the cloudless sky is shifted to the blue side of the spectrum (curve 1), and the sun's light one hour before sunset to the red side (curve 4). The increase in color temperature leads to a shift in colors to colder ones. This is due to the fact that shorter wavelengths carry a higher energy (Figure 5).

Fig. 5 - Distribution of light sources on the color temperature scale

Color temperature in the photo

The sight of a person easily adapts to the color of the light source and therefore a white sheet of paper looks neutral in the sun, under the sky, or under the light of a table lamp. In the camera, the same color adaptation is performed by setting the correct color temperature - the white balance setting. The wide variation in the color temperature of different light sources explains why, in addition, it is necessary to adjust the white balance for each particular scene with certain lighting conditions.

The result

With increasing physical temperature, the color temperature of most light sources shifts from the red part of the spectrum to the blue one.
  The correlation color temperature of the light sources corresponds to the temperature of an absolutely black body with the same color of radiation.
The color temperature of an artificial source varies depending on the physical and chemical properties; for natural - depends on the geographical latitude, cloudiness, transparency of the atmosphere, the location of the sun.
  For different lighting sources, the photo uses a correlation color temperature, which adjusts the correct white balance-the reproduction of natural colors that the human eye sees in this light.

Good afternoon dear friends! Everyone is welcome to visit the website "Electrician in the house." Recently, the demand for LED products is constantly increasing. The use of innovative light sources finds application in various branches of the national economy.

LED lamps are equipped with new cars, highlights homes, premises of enterprises and outdoor advertising stands. They are used in searchlights, street and office lamps, as well as in a variety of other human inventions.

The concept of   does not even imply the amount of heat given off by them, but has a completely different meaning. This is the visual effect of the perception of the source of illumination by the human eye. As the color spectrum of light approaches solar (yellow), determine the "heat" of each lamp.

You can also associate with the flame of a candle, and you will immediately understand how this phenomenon is described. On the contrary, the bluish shade of light is associated with a cloudy sky, a snowy night glow. This light causes us cold, pale images. But there is a definite scientific explanation for everything.

When a piece of metal is heated, it has a characteristic glow. First, the color range is in red. As the temperature rises, the color spectrum gradually begins to shift to yellow, white, bright blue and violet.

Each color of the metal glow corresponds to its own temperature range, which makes it possible to describe the phenomenon using known physical quantities. This helps to characterize the color temperature not as a randomly taken value, but as a certain heating interval until the required color of the spectrum is obtained.

The spectrum of the color of the glow of the LED crystals is somewhat different. It is different from the possible colors of the glow of the metal due to another method of its origin. But the general essence remains the same: for reception of the chosen shade the certain color temperature is required. It should be noted that this indicator is not related to the amount of heat allocated by the lighting device.

Once again I want to note, do not be confused color temperature  and the physical temperature (the amount of heat) that your lamp emits, these are different indicators.

Color temperature scale of LED lamps

Today's domestic market offers a huge range of light sources on LED crystals. They all operate in different temperature ranges. Usually they are chosen depending on the location of the proposed installation, because each such lamp creates its own, individual appearance. The same room can be significantly transformed, changing only the color of lighting in it.

For optimal use of each LED light source, you should determine in advance which color is most convenient for you. The concept of color temperature is not specifically associated with LED lamps, it can not be tied to a particular source, it depends only on the spectral composition of the selected radiation. The color temperature was always at each light device, simply with the release of standard incandescent lamps, their glow was only "warm" yellow (the radiation spectrum was standard).

With the advent of fluorescent and halogen lighting sources, white "cold" light came into use. LED lamps are characterized by an even wider range of colors, due to which the independent choice of the optimum lighting has become more complicated, and all its shades have been determined by the material from which the semiconductor was made.

Relationship of color temperature and lighting

A clear knowledge of the tabular values ​​of this characteristic helps to understand what color the speech will go next. Each of us differs in its color perception, therefore it is possible to determine visually the coldness or heat of the light flux only in units.

The average parameters of a group of products operating in a given spectrum are taken as a basis, and when the final choice of LED fixtures is taken into account, the specific operating conditions (installation location, illuminated space, purpose, etc.) are taken into account.

Today, all sources of illumination, depending on their range of luminescence, are classified into three main groups:

1. - warm white light  - operate in the temperature range from 2700K to 3200K. The spectrum of white warm light emitted by them is strongly similar to that of a conventional incandescent lamp. Lamps with such color temperature  are recommended for use in living quarters.
2. - day white light  (normal white) - in the range from 3500K to 5000K. Their luminescence is visually associated with the sunlight of the morning. This is the light flux of the neutral range, which can be used in apartment technical rooms (hallway, bathroom, toilet), offices, training classes, production workshops and so on.
3. - cold white light  (daylight white) - in the range from 5000K to 7000K. Reminiscent of bright daylight. They are illuminated by hospital buildings, technical laboratories, parks, avenues, parking lots, billboards, etc.

From these characteristics it is perfectly clear that when low color temperature  red predominates, and there is no blue color. When the temperature increases, green and blue colors appear, and red disappears.

Where can I find out about this parameter?

On the packaging of each lighting bulb, manufacturers indicate it specifications  . Among all other characteristics, such as power, voltage, network frequency, it is necessary to specify (this applies not only to LED lamps). On this main factor, it is necessary to pay attention before buying a lamp.

Incidentally, this characteristic is displayed not only on the packaging, but also on the lamp itself. Here is one example, a LED lamp with a power of 7 W and a temperature of 4000K. It is installed in my house, in the kitchen, with a pleasant daylight.

And here is another example of a designation on the LED spotlight for gypsum plasterboard ceilings  , a temperature of 2800 Kelvin. Lamps with such a color temperature shine with a warm light similar to an incandescent lamp and were installed in the bedroom on one of the objects.

Which lamps to choose for office

In the normative document SP 52.13330.2011 "Natural and artificial lighting" recommends the use of different sources of radiation, depending on their type, power, construction and characteristics of the light flux. The premises of the housing stock are prescribed to be equipped with small and low-temperature "warm" lighting devices, and in the uninhabited fund to install larger luminaires of normal "white" light.

It is proved that white illumination is optimal for the working process, because the part of the blue spectrum contained in it has a beneficial effect on the person, helps him to concentrate, accelerates the reaction and the working processes of the body. It is good to choose sources of radiation exactly from 3500K to 5600K, with white or neutral light, with a slightly bluish tinge. Such lighting will give an opportunity to increase the efficiency to the maximum.

Suitable as fluorescent, and LED lights, although the latter will significantly save energy.

On the contrary, a big mistake will be installing in such a place the lamps of cold white light with a range close to 6500K. This will lead to rapid fatigue of workers, complaints of a headache and a sharp decline in efficiency.

Which lamps are suitable for home

In apartments and private houses, white light is not recommended. It is not necessary to place everywhere the same fixtures, it is better to use individual recommendations for lighting equipment in such premises. You can install white neutral lamps in the kitchen, in the bathroom and the hallway. Their temperature can vary from 4000K to 5000K.

But for the bedroom, nursery and rooms where you rest, it is preferable to use warm colors of the light spectrum. Here the best solution will be a warm white light closer from 2700K to 3200. It will relieve the day's tension, create a cozy and relax.

It is convenient and effective to use normal white light in the reading area and working corner, as well as to illuminate the mirrors, before which the makeup is applied. This will achieve the maximum color contrast and convenience for the actions performed.

The child's writing desk is better equipped lamp with a temperature of 3200-3500K. It will not create unnecessary fatigue for the eyes, and the proximity to the white spectrum will help to get ready and tune in to work. For all LED lamps their operating temperature is indicated on the package.

This is actually all dear friends. If you liked the article I will be grateful if you share it on social networks.

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