Power of modern energy-saving lamps. A comparative analysis of LED and incandescent lamps of 6 W LED lamp equals

Unlike conventional incandescent lamps, differing only in the capacity and quality of manufacture, LED lamps have many parameters affecting the quality and safety of lighting. I will talk about the basic parameters of the LED lamps and would recommend which lamps are better suitable for home.

Power

LED lamps should not choose in power - efficiency in various lamps. Different and lamps with the same power can be very different in brightness: lamps that replace the usual lamp-pear 60 W can have a power from 6 to 10 W, lamps that replace "Candle" 40 W May have a power from 4 to 7 W.

Equivalent power

Most of the manufacturers of LED lamps indicate the equivalent of power lamp power. For example, the packaging may indicate that the lamp has a power of 6 W and shines as the incandescent lamp 60 W. Some manufacturers indicate this equivalent to incorrectly, so I recommend always to pay attention not to equivalent of power, but on the light stream.

Light flow

The brightness of the lamp, or rather the amount of light that the lamp gives is determined by the "Light Flow" parameter, measured in lumens (LM, LM).
For conventional lamps (pears, candles), you can approximately estimate the necessary light stream, multiplying the power of the conventional incandescent lamp by 10: 40 W - 400 lm, 60 W - 600 lm, 100 W - 1000 lm. Thus, if you want to buy a LED lamp to replace a 60-watt incandescent lamp, look for lamps with a light stream of at least 600 lm.
Unfortunately, many manufacturers overestimate the value of the light flux. In reality, it may be even twice as below the declared and lamp, which should shine, as the 60-watt incandescent lamp will only shine as 25-watt. Real values \u200b\u200bof the light stream can be found only according to the results of independent testing.

Colorful temperature

Incandescent lias are shine with warm yellowish light with a color temperature of 2700-2800K. If you want the LED lamp to give light, as much as possible to light incandescent lamps, choose a lamp with a color temperature of 2700-2800K. Many LED lamps have a color temperature of 3000K - it is more white, but no less comfortable light. Light lamps with color temperatures 4000k are called "neutral white". This light is suitable for office premises. It is believed that the white light contributes to improving performance, and yellow helps to relax and relax, so the light should be at home in the evening, the light should be warm with the color temperature not higher than 3000k. Lamps with cold white light 5000k and above are intended for use in economic space. At home they are not a place.

Voltage

LED lamps operating from the 220-230 V network and from 12 volt power sources are available.
In LED lamps, drivers are used (electronic boards installed in the lamp base) of different types. Many lamps use drivers with stabilization. The brightness of such lamps does not change when the network voltage fluctuations in very large limits. Some of the lamps shine equally brightly with a decrease in the network voltage from 230 to 70 volts. Unfortunately, manufacturers often do not indicate the real voltage range: 220-240 V or 230 V can be written on the lamp packaging, and in reality, the lamp is on with a much smaller voltage.

12 volt lamps are available with E27, E14, GU5.3, G4 bases and can operate both from direct and variable voltage. Most microlamp with a base G4 and some SPOT lamps with GU5.3 base when operating from alternating voltage have a very high light ripple, harmful to eyes and well-being in general. In order to avoid pulsation of such lamps, you will have to replace transformers to DC power supplies.

Color rendering index (CRI, RA)

Shine lED lamp It differs from the light of the incandescent lamp by the spectrum. Although light and looks white, some color components in it are greater, and some are less. The color rendition index shows how uniform is the level of different color components in the light. With low RA, the shades are worse. Such a light is visually unpleasant, and to understand that it is not so difficult in it is very difficult. The incandescent and sun lamps are higher than 98, in good LED lamps it is more than 80, in very good more than 90. The lamps with Ra below 80 in the residential premises are better not to use.
Unfortunately, some manufacturers are overestimated by RA: they write Ra\u003e 80 on the box, and in fact it only slightly exceeds 70 and such lamps are better not to use in residential areas.

Working with a switch having an indicator

Many LED lamps work incorrectly with switches having an indicator light bulb or LED. When the switch is turned off, such lamps flas out or weakly burn. Only some manufacturers indicate whether their lamps work with such switches.

Support for work with dimmer

Most LED lamps cannot work with brightness regulators (dimmers), but are manufactured by special dimmable LED lamps that support brightness adjustment. Such lamps work with most conventional dimmers for incandescent lamps, but the minimum level of brightness during dimming can be quite high (about 20%). In order for the dimming lamps to reduce the brightness almost to zero, it is necessary to use special dimmers for LED lamps.

Pulsation of light

The pulsation of light leads to the fatigue of the eyes and the general deterioration of well-being, so it is very important to use only those lamps that do not have visible ripples. Sniped for various types of premises is normalized by the pulsation of light in the range of 5-20%, in fact, for a person, the ripple to 35% is imperceptible. Only some manufacturers write on the packaging lamps "without ripples". In other lamps, the pulsation level can be low, but in the lamp parameters it is not specified. The presence of ripples can be checked using a "pencil dough" or looking at the light of the lamp through the smartphone camera (if there are ripples, the stripes will be visible on the screen).

The angle of lighting

Conventional incandescent lamps are shined in all directions, halogen spots give a narrow beam of light. With LED lamps, everything is more complicated.

Many LED lamps that replace conventional incandescent lamps have a cap in the form of a hemisphere of the same diameter as the case. Such lamps are practically not shined and if they are directed down, the ceiling will remain dark, which may be uncomfortable. Fortunately, many lamps have recently appeared, the transparent cap of which is greater than the case and due to this lamp shines slightly and backwards.
Lamps on LED threads (Filament) have the same big corner Lighting as conventional incandescent lamps.

Most LED spots (lamps for suspended ceilings with GU10 and GU5.3 bases) shine with a scattered light with an angle of about 100 degrees and blinded due to too wide angle (halogen seeds give a narrow light beam with an angle of illumination of about 30 degrees). Only some LED sides have the same narrow lighting angle, like halogen lamps. Such lamps are easy to recognize the presence of lenses in front of LEDs.

Type of lamp

In a conventional LED lamp, several LEDs are covered with a cap (usually matte). Sometimes outdated corn lamps are still found, the entire surface of which is covered with a variety of small LEDs resembling the grains of the cake in the cob. A new type of LED lamps - filament lamps (or lamps on LED threads). Such lamps are very similar to the incandescent lamps - they have a glass flask and a wide lighting angle. Inside the lamp, LED threads are placed - ceramic or metal plates on which many small LEDs are placed in a row.

Such lamps are more efficient than ordinary (they give more than 100 lm / W) and their light is as much as possible to light incandescent lamps. Most of the filament lamps are transparent, but there are matte. The lack of such lamps is a lower service life compared to conventional LED lamps.

Life time

Manufacturers indicate the life of the lamps from 10,000 to 50,000 hours. In fact, no one knows how much the lamp will serve in reality, because technology is improved very quickly and all the deadlines are calculated theoretically. I recommend paying attention not to the specified service life, but for a warranty period, during which you can exchange a lamp that has failed.

Guarantee

All LED lamps have a guarantee from 1 year to 5 years. Stores are required to change lamps under warranty during this period, if they failed. In addition, according to the law on the protection of consumer rights, you can return the lamp to the store within 14 days after the purchase, if you did not like if there are intact packaging and, if possible, check.

How to choose good lamps

The choice of LED lamps is not easy task. Even the most famous manufacturers, there are lamps with unacceptably high ripples. Some manufacturers have a good part of the lamps, and the part is not very. In order to know exactly what lamps are good, and which no, I created a project on independent testing of LED lamps. I test lamps and public results of measurement of all basic parameters. Now more than 1000 models of lamps 75 brands have been tested and the work continues. Therefore, the easiest option is to find the lamptest you are interested in on Lamptest and look at its measured parameters:

The pulsation coefficient should not exceed 35% (and better so that it is less than 10%);
The color rendering index must be at least 80 (for economic premises it is possible from 70);
The light flow should be no less than that of the incandescent lamp that you want to replace the LED;
If you have a switch with an indicator, make sure that the lamp can work correctly with it.
If you have a brightness regulator, make sure that the lamp supports dimming;
If you choose SPOT LAMP, pay attention to the lighting angle. Lamps with an angle of more than 50 ° will be blinded when installed in the ceiling of the large room.

If the lamp you are interested in not yet on the site site, I recommend to be guided by the following selection criteria:

If the packaging indicates "without ripple" with the high probability of light bulb lights will be less than 5%. If this is not specified and there is an opportunity to turn on the lamp, look at its light through the chamber mobile phone. The screens should not go on the screen. Try to twist a pencil or other long items in front of the lamp. If the contours of the pencil are blurred - the ripples are not, if you see "a few pencils" there is a visible ripple and such a lamp should not buy.
See how the skin of the hand under the light of the lamp looks like. If the color is grayish - the lamp has a low color rendering index and it is better not to buy it.
Compare the light brightness of the lamp with the brightness of the light of the incandescent lamp or another lamp, the brightness of which you know. Approximate comparison can be made using the Most Smartphones on Android light sensor. Install any luxmeter application (for example, Sensors Multitool and select "Light"). The sensors of all smartphones are not calibrated, so the values \u200b\u200bof all smartphones will be completely different, but for comparison it is not important. Take at home the matte lamp of the same form as you want to buy, run the application and lean the smartphone with the sensor to the lamp (the sensor is on the screen on the left or right, take it to the top of conventional lamps and to the center of the Boc Sandle). Write down the resulting value. In the store, turn on the lamp, wait at least a minute (when warming up the LED lamps lose up to 12% of brightness), run the application and legend the sensor to the lamp. Compare the value with the measured home. Now you will know almost exactly, a brighter measured lamp than that that was measured at home, or dim.
Pay attention to the lamp date (most lamps it is indicated on the housing). If the lamp released more than two years ago, do not buy it better - progress is going very quickly and modern lamps are better than those who have been produced earlier.
Pay attention to the warranty period. If the guarantee is large (3-5) years, the probability of the failure of a lamp is much smaller.
After purchase, take a picture check. If the lamp fails, this photo will help you change it under warranty if the usual check is lost or faded.

I wrote this article for Yandex Market: market.yandex.ru/articles/kak-vybrat-svetodiodnuju-lampu.
I hope she will help a large number of people not to make a mistake with the choice of good LED lamps.

2017, Alexey Nedugin

The value has a large number of different factors. This article describes how to make the right choice.

Energy saving lamp device

Many years along with incandescent lamps used luminescent light sources. But they had a disadvantage - large sizes. The development of technologies made it possible to make a flask thinner, bend it in the form "u" or spiral, and an electromagnetic choke that consumed except active, reactive power, to make electronic and put in a regular base.

Thus, the size of fluorescent devices has become comparable to incandescent lamps, and they ranked their place in the lighting equipment.

Main characteristics

The main parameters of energy-saving lamps that affect the selection of the desired light source are:

• type of base;
• light flow;
• colorful temperature;
• light returns;
• color reproduction index;
• term of the work.

Type of soccer

The base used in energy-saving light bulbs are two types:

Threaded or Odison Cocol. Their marking consists of the letter "E" and the number indicating the diameter. The most common - E14 (minion E14), E27 (most commonly used) and E40 (changes in high power devices corresponding to the old incandescent lamps of 0.5-1 kW).

Pin. Denote by the letter "G". The numbers indicate the distance between the pins.

Light stream and return

This parameter denotes the amount of light emitted by a light bulb indoor. The light stream is measured in lumens (LM or LM) and is indicated on the package.

The light stream shows how many lumens radiates the light source on watt power. In incandescent lamps, it is minimal - 10-15 lm / W, in energy-saving - 50-80 LM / W. The most economical sources are LED. They have a maximum light stream - 40-100 lm / W.

Opinion expert

Alexey Bartosh

With long-term operation, the light return decreases. This is due to the deterioration of the properties of the phosphor, the filament or diodes in the lamps with LEDs.

Light temperature

On the subjective perception of illumination affects not only the light flux emitted by the lamp. No less important is the shade of light.

White light is used for lighting, but depending on user preferences, the shade may be different. It is distinguished by light temperature. The most common are:

• 2700 K - Warm white, such light have incandescent lamps. Used in residential rooms.
• 4100 K - neutral. This type of light sources is used in bathrooms, corridors and kitchens of residential buildings and in industrial premises.
• 6500 K - cold white. Suitable for the street.

Color reproduction index

The eyes of a person best perceive the color when natural lighting. Artificial sources Light distort the color perception.

The color rendering index (RA or CRI) is an indicator that determines the naturalness of the color with artificial lighting.

Its perfect value is 100. The use of lamps with an index below 80 in residential premises is not recommended, since the real colors are distorted.

Fluorescent and energy-saving lamps color rendering index - 60-98.

Term of the work

Firms producing energy-saving light bulbs, including ESL, declare the service life of 8000 hours or 8 years, counting the average operation of 2.5-3 hours a day, including the toilet in which the light turns on episodically, and the living room, where it burns all evening .

Opinion expert

Alexey Bartosh

Specialist in repair, maintenance of electrical equipment and industrial electronics.

For the service life poorly affects a large number of inclusions and low quality electricity. All these factors lead to the fact that the service life turns out to be less than the stated.

Comparison of lamps their advantages and disadvantages

As with any electrical device, energy-saving lamps have advantages and disadvantages. Best of all, they are visible in comparison with incandescent bulbs and LED.

As can be seen from the table, ESL is more economical, have a long service life and a variety of shades of light compared to incandescent lamps.

However, they require more accurate treatment (inside the mercury pairs), consume more electricity and have a smaller service life than diode light bulbs that are the most energy-efficient light sources.

Power table ESL

Consumers are often interested in the question, which power corresponds to incandescent light bulbs. The table below gives an answer to the compliance of the capacities of the lamps of different types.

According to this equivalence table, the ESL of the nominal power 11 W corresponds to the incandescent lamp 55 W, 15 W - 75 W, 20 W - 100 W.

Recently, many are thinking about the transition to the use of LED. If earlier there was one such parameter as power, now it is a full-fledged electronic lighting device with several main, power supply on chips, light from warm to cold, and even three-color RGB.

The disabilities of the LED lamp and incandescent lamps enjoy unscrupulous sellers and manufacturers, for example, indicating the brightness of 800 lumens and declare that it is an analogue of the usual incandescent per 100 W.

• 1. Power ratio table
• 2. Tips for replacing incandescent bulbs
• 3. Energy Saving Conformity Table
• 4. Specialist comments, video
• 5. Infographics
• 6. Consumer characteristics

Table ratio of capacity

The table indicates the ratio of power for LED with open diodes, that is, without a flask, which reduces brightness by 15-20%.

The most frequent misconception is when it believes that the 10 W LED is equivalent to the incandescent lamp by 100 W. But taking into account the fact that the matte flask reduces the brightness by 20% and 1W goes to heating the driver, then ultimately we have only 7 useful watts that will give 700-800 lumen on average. Which does not at all reach the necessary 1300 lm.

An example of a matte flask

On powerful diode light bulbs, a flask is used to protect your eyes, especially children, because they are blind as welding.

The 100W incandescent analogue will be two diode lamps on 650 lumens. When choosing now should not be focused on watts, and use the amount of lumen on the matching table. The greater the brightness of the diode, the more its radiator should be. This is one of the indirect ways to determine the power and choose the right equivalent.

1. It is also possible to find long LED G13, which can be replaced by mercury in fluorescent lamps, saving the current body.

2. If your room lighting is not yet designed and not installed, then in order to reduce the cost of lighting costs can be installed. The panel has 60 cm sizes and 1 cm thick. No power supply. It can be mounted almost on any ceiling with a false way. In return, we get a huge brightness of 3,600 lm for 1250 rubles.

3. I prefer diode lamps in the form of corn, they have a good design and do not require a separate radiator to remove heat and flasks. The only drawback is open electrical contacts of diodes with low voltage.

Matching table energy saving

Energy-saving is most effective in constant operation, with frequently on and off, they consume heating several times more, and first turn on half the power.

Specialist comments, video

Infographics

Consumer characteristics

For a long time, incandescent lamps did not have an alternative replacement. Most recently, the electrical market has provided users with a wide range of more economical shielding plans that have a large operational period - LED light sources.

In addition to the increased potential, this modification was able to completely replace the spiral element by energy intensity, the power of the light stream and brightness. However, in the selection of products, the ratio of the power of LED lamps of incandescent lamps should be known. Thus, you can pick up the most suitable product.

What is the difference between spiral and diode products?

The technical features of each lighting device are determined by the structural characteristics and method of functioning. The principle of incandescent lamp consists in a set of temperature with a spiral at the time of the electric flow. To ensure the safety of the use of the device and feeding its uniform light rays, this part is located in a special glass flask filled with discharged oxygen.

The standard view of the spiral products has a fairly affordable cost, which, in fact, users considered the way of saving. In this case, it is important to consider the average operational period and the required amount of electricity consumption on the functioning process.

With the ratio of the power of LED lamps and incandescent lamps, comparing service life and other parameters, it is cost-effective to apply the first option. Its design consists of a complete set of semiconductor diode instruments, which are interconnected into one product. Each element is a crystal producing photons at the time of passing through the electricity device.

In incandescent lamps, only 2 explicit advantages - the price and direction of the flow, in all the rest of them, with a bigge, overtake the LED

Before the user is determined with the choice, a comparative analysis should be made.

1. LED lamps for functioning consume significantly less electricity. Approximately consumption is ten times less than a spiral product.
2. Incandescent lamp dispels radiation at 360 o C, which creates a full light illumination, including walls, gender and ceiling. Most lED lamps Possess a plane design with built-in light components. When the product is functioning, the light is radiated by an angle of no more than 170 o C.
3. The operational period of semiconductor lights produce is much larger. This factor is directly related to reduced heating of crystals, the temperature of which does not lead to destructive processes, which is quite characteristic of lamps with incandescent method.

How to calculate power matching?

Selected by power The LED lamp will not quite correctly, since these parameters indicate only the number of electrotock, which requires lighting equipment. The main indicator for any lighting equipment is considered the effectiveness of the light beam, which is measured in lumens (LM).

The estimated indicators indicate that the power of spiral models of 100 W equals the lighting performance with the intensity of 1200-1400 lm. The difference between the indicators depends on the degree of transparency of the case.

In order for the LED to be able to issue these values \u200b\u200bwhen working, its power should not exceed 14 W. Often consumers expect the equivalent of consumable energy, this is due to the fact that not all manufacturers indicate their products the efficiency of the light beam.

It is for this reason that to carry out a more correct comparison, it is necessary to take into account the ratio of the capacity of LED lamps to spiral products.

Not always the required power value will correspond to standardized product parameters. In this case, it is recommended to install several instead of one diode. Thus, they summarize the light intensity of the desired coefficient.

Table of power LED devices:

In addition, the other comparative parameters should also be taken into account, including this concerns the angle of dispersion. The criterion determines the territory that is supposed to be covered.

In order for the room completely, experts recommend installing diode devices made in the form of pear.

It should be known that this series may not come to all lighting devices. Replace the product can semiconductor device with a flat platform with an angle of dispersion not more than 170 o C.

It is important to remember that the larger the diodes are present in the device, the brighter will be evenly light, but the cost of the device will also increase. Often, modifications with 4-8 diodes are acquired, the result is 10-14W.

Video: Real ratio in the number of light incandescent lamps and LED lamps

To replace non-economic elements of incandescent to diode instruments, it is necessary to determine the base of the desired device. This requires to make measurements of the depth and diameter of the cartridge. Next, you must follow the following recommendations:

1. No need to navigate the power of the device being replaced. Use the conformity assignment table indicated above.
2. Light stream - no less important nuance when selection of light reasons. It is necessary to compare the value of the luminous stream of devices with the same functioning angle.
3. Dispersion angle. To illuminate the entire room there will be a light source with an angle of illumination in 170 o C. The option allows you to illuminate the floor and walls, while leaving the ceiling, leaving darkened. For wall-mounted or desktop types, it is better to use lighting equipment with a small radius of lighting.

1. Temperature of light. It should be known that the temperature regime must correspond to the purpose of the room:

• for temperature mode 4000-5000 ° The daily light awakens cheerfulness, it has to work, do not blind eyes, is used in offices;
• 2500-3500 ° K - Warm light favorably affects the comfort of psychological recreation, applied in the bedroom, living room, etc.

With all the diversity of light elements, the overwhelming majority of them are produced with a screw type base - Edison Screw. And already among the first places, they are divided, respectively, E14 and E27, which operate from the 220V network. In this marking, it means the type (EDISON screw), and the digital combination is the diameter of the base (width of the cartridge).

Disadvantages of diodes

The benefits of the product have already been written a lot, but the diodes have some drawbacks. Consider them in more detail:

• Price. Diode lamps cost up to 10 times more expensive spirals. However, it should be remembered about the same economy of electricity.
• Big sizes. Diode light reproductives in all dimensional parameters are superior to competitive marks.
• Can replace not every lamp. For example, a candle with an E14 element with a power of 60W, it is simply impossible to choose the most decent analog. To mount the desired radiator, it may physically may not be enough space, but if you install a smaller option, it can lead to overheating.

Most complaints cause a certain direction of rays. Light streams have aimed at character. Rays poorly illuminate side elements, the best light spreads along the parallel plane.

• Color reproduction. Color reproduction parameters reach a mark 80. Only spiral devices and natural lighting are above the value above.

The disadvantage is that when working a powerful product, its color barrier "eats", resulting in a shade, mixed with the interior colors.

Video: Comparison of LED lamps

Incandescent lamps use a very long period of time, and LED analogues are in broad access not so long ago (more than a dozen years). Therefore, today many are thinking about which of the types of light sources is better / more efficiently / more profitable to use? To answer this question, make a comparison of the indicators of the main parameters (power, brightness).

Differences in the design and principle of work

All the advantages and disadvantages of both options (incandescent lamps, LED analogs) are due to their structural features. The first of these options is characterized by the simplicity of the device and the principle of operation. So, the design includes: glass flask, glow body (tungsten thread), holders, base.

The basis of the work is to heat the threads to high temperaturesWhat leads to the emergence of light radiation. One of the features of the lamps of this type is the transformation of electrical energy in thermal equivalent, which significantly reduces the efficiency.

LED light sources, on the contrary, are characterized by a more complex design. Main nodes: Built-in driver stabilizing the electrical parameters of the supply source; base (threaded or pin, which is determined by the lighting element model); Light-emitting diodes in different quantities.

The principle of operation of such a type of lighting elements is the transformation of electrical energy in the luminous equivalent. Such lamps can be connected to a power source of 12 or 220 V. The second option involves the need to install the built-in driver, since the diode execution should be powered by a DC source.

Comparison of basic parameters

Determine for yourself best option lighting element can only perform a comparative analysis technical characteristics Both species.

At first there will be an incandescent lamp:

• power may vary from 15 to 200 watts, which affects efficiency and determines the target destination of the light source;
• power supply voltage - 220-240 V;
• color temperature typically varies from 2,700 to 3,200 k, the higher the value of this parameter, the shorter the life of the product;
• light shade - warm yellow;
• light stream (direct dependence on power);
• service life (on average 1,000 hours);
• the dispersion angle is 360 degrees for all versions thanks to the fully open scatterer.

LED performances are characterized by similar parameters, but with other indicators:

• the capacity is extremely small (from several units to several dozen watts);
• supply voltage (12 or 220 V);
• the color temperature varies in very wide limits (from 2,700 to 6,000 k and even higher, depending on the model and its intended purpose), while the product produces warm, cold or neutral light;
• the light flow at low power is equivalent to a similar parameter of high power incandescent lamp;
• the duration of operation (from 30,000 to 100,000 hours), but the maximum border is reached only in ideal working conditions;
• the dispersion angle varies from 120 to 360 degrees, which affects the design of the lamp.

Comparing the above characteristics, it can be noted that LED light sources in many parameters exceed incandescent bulbs.

Power matching table

Despite the fact that each type of light sources has its own number of parameters, the comparison of the two covered lighting elements is primarily performed on the basis of the power of each of them.

The matching table is as follows:

When looking at the data provided, it is possible to determine the most economical source of light without additional calculations. No doubt it is a LED lamp.

Overview of Pluses and Minuses

Considering the sources of light on the basis of diodes, their economy and high efficiency can be noted, which is due to the intense light stream with a minimum power value. In addition, this version is characterized by a very long period of operation.

Considering that the service life of the incandescent lamp is an average of 1,000 hours, and the duration of the functioning of the diode analogue is 50,000 hours (average value), it is possible to determine which 50 pcs can be spent (50,000 hours). incandescent bulbs and just one unit based on diodes.

But the LED performances have cons. First of all, such a cost should be attributed. Under certain conditions (intensive operation), we can talk about a relatively rapid payback of such purchase (2-3 years).

Both types of light source are distinguished by pleasant lighting, but in contrast to the incandescent filament lamp, diode performances are represented by a wider range of models with different color temperatures.

It should also be noted the lack of need to maintain light bulbs based on diodes, again, due to their long-term operation. However, by the end of the functioning period, such lighting elements are characterized by a significant decrease in efficiency, which is due to the natural degradation process (crystal purification).

Thus, the conformity table makes it possible to estimate the difference in the values \u200b\u200bof the power of the light sources under consideration. And the comparison will not be in favor of the filament of incandescent.

In addition to the above pros and cons, you can also focus on the efficiency of the lighting elements. The light bulbs with incandescent thread are very hot, as a result, less than 50% of the energy spent is due to lighting, which is due to the transformation of electricity in thermal equivalent. The efficiency of diode light bulbs is much higher due to their insignificant heating.