The power of modern energy-saving lamps. Comparative analysis of LED and incandescent lamps LED lamp 6 watts incandescent lamp equivalent

The transition to energy-saving resource use begins with understanding whether 6 watts of an incandescent lamp and an LED are equal. To do this, it is necessary to understand the principle of operation of both types of light sources, to see the structural differences in performance. For the convenience of consumers, comparison tables have been developed for the power of light bulbs. different kind. There are methods for calculating the lighting of premises by their area through the use of LED lamps.

Structural differences

The advantages and disadvantages of diverse light sources are predetermined by the principle of operation and device. Traditional bulbs have been serving people for many years, they have several varieties, and LED bulbs have appeared relatively recently, but are gradually replacing conventional bulbs. The most common emitters today are:

LEDs first appeared in 1962, and their manufacturing technology was complex. Today, this type of lamp consists of a built-in driver for power stabilization, a base, and several emitting diodes.

Products are connected to a network of 12 or 220 V. The latter option assumes the need for rectification of the current, since LEDs do not work from alternating current.

Power Comparison

The main criterion for evaluating the quality of a product (from a consumer point of view) is the power of a light bulb in watts. To understand the ratio of the indicator for shining flasks various types, you can refer to the table.

It can be seen from the table that the lowest power LED lamps. The second largest energy has a tubular element of cold glow.

The traditional heating principle is the most irrational in terms of efficiency: 6 watts<50 Вт - оба источника обеспечивают освещённость 550 лм.

The energy efficiency of an LED lamp, taking into account the direct dependence of the indicator on power consumption, is 10 times greater than that of a conventional one. At the same time, the service life of an optical device is thirty times longer than the period of operation of a traditional incandescent source. There are other parameters by which lamps are compared:

In all respects, LED lamps have a clear advantage. It remains only to add that their design is diverse in shape (ball, candle, spiral) and colors. A relative disadvantage is the high cost, but it is completely leveled against the background of the superiority of the LED in other criteria.

To select an LED-analogue of a conventional radiation source, power matching tables are used, available for viewing on the Internet. In favor of the decision to replace speaks the universal recognition of the greatest safety of LEDs for humans in comparison with other sources. Looking at the passport of the device, you can calculate how many bulbs you need to ensure good visibility in the room:

For a corridor measuring 12 m², H = 100 lux, and F = 550 lm for a 6 W LED device. Required number of sources R =12*100/550=2.2. using the rounding rule, 2 LED bulbs of 6 W can be accepted for installation.

The main advantage of LED light sources is significant energy savings. You can get tangible and desired results using the products of the online store.

Energy-saving fluorescent lamps, which have already become familiar to many, are gradually becoming a thing of the past. It is being replaced by lighting equipment of a fundamentally new type, with different light and quality characteristics. Modern LED light sources have a whole range of advantages over their predecessors. This applies to light output, energy consumption, service life, environmental friendliness, fire and mechanical safety. The "minuses" that make their implementation difficult include the higher cost and the conservatism of a certain part of the population.

To overcome doubts, it is enough to turn to table of correspondence of power of LED lamps characteristics of light sources of the previous generation.

Table comparing characteristics of lamps: incandescent, halogen, energy-saving fluorescent and energy-saving LED lamps

The table of correspondence between the luminous efficiency of energy-saving (fluorescent) lamps and incandescent lamps corresponds to

LED and Incandescent

It should be noted that the tabular figures are averages and may differ for. However, the conclusions are clear. Traditional, but obsolete, uneconomical light bulbs lose significantly. The given table of correspondence of the power of LED lamps, even taking into account the inevitable error, convincingly proves the advantages of the new generation systems. To this must be added a long service life, due to their design features and providing a quick and repeated payback. Analysis of tabular data, simple calculations show: the present and the future are behind the LEDs!

There are many different factors that matter. This article is about how to make the right choice.

Energy saving lamp device

For many years, fluorescent light sources were used along with incandescent lamps. But they had a drawback - large sizes. The development of technology made it possible to make the flask thinner, bend it in the shape of a “U” or a spiral, and the electromagnetic choke, which consumed reactive power in addition to active power, was made electronic and placed in a conventional base.

energy saving lamp and incandescent lamp

Thus, the size of luminescent devices became comparable to incandescent lamps, and they took their place in lighting equipment.

Main characteristics

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

plinth type;
light flow;
Colorful temperature;
light output;
color rendering index;
Term of the work.

Plinth type

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

Threaded or Edison base. Their marking consists of the letter "E" and a number indicating the diameter. The most common are E14 (e14 minion), E27 (most commonly used) and E40 (changes in high power devices corresponding to old 0.5–1 kW incandescent lamps).

Pin. Designated with the letter "G". The numbers indicate the distance between the pins.

Plinth types

Luminous flux and output

This parameter indicates the amount of light emitted by the bulb in the room. The luminous flux is measured in Lumens (lm or Lm) and is indicated on the packaging.

Luminous flux indicates how many lumens a light source emits per watt of power. For incandescent lamps, it is minimal - 10-15 lm / W, for energy-saving lamps - 50-80 lm / W. The most economical sources are LED. They have a maximum luminous flux - 40-100 lm / W.

ESL luminous flux

Expert opinion

Alexey Bartosh

Ask an expert

With prolonged use, the light output decreases. This is due to the deterioration of the properties of the phosphor, filament or diodes in LED lamps.

light temperature

The subjective perception of illumination is affected not only by the luminous flux emitted by the lamp. The shade of the light matters just as much.

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

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

light temperature ESL

Color rendering index

The human eye perceives color best in natural light. Artificial light sources distort color perception.

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

Its ideal value is 100. The use of fixtures with an index below 80 in residential areas is not recommended, as this distorts real colors.

The color rendering index of fluorescent and energy-saving lamps is 60–98.

Term of the work

Energy-saving light bulbs, including CFLs, claim a lifespan of 8,000 hours, or 8 years, assuming an average run time of 2.5–3 hours a day, including the bathroom, where the light is switched on sporadically, and the living room, where it is lit all evening .

Expert opinion

Alexey Bartosh

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

Ask an expert

The service life is badly affected by a large number of starts and poor power quality. All these factors lead to the fact that the service life is less than stated.

Comparison lamps their advantages and disadvantages

Like any electrical appliance, energy-saving lamps have advantages and disadvantages. They are best seen in comparison with incandescent and LED bulbs.

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

However, they require more careful handling (there are mercury vapors inside), consume more electricity and have a shorter life than LED bulbs, which are the most energy efficient light sources.

comparison table

ESL power table

Consumers are often interested in the question of what power CFLs correspond to incandescent bulbs. The table below gives an answer on the correspondence between the power of luminaires of different types.

incandescent

30 W

35 W

40 W

45 W

50 W

55 W

60 W

65 W

75 W

80 W

90 W

100 W

115 W

120 W

130 W

180 W

275 W

energy-saving (luminescent)

6 W

7 W

8 W

9 W

10 W

11 W

12 W

13 W

15 W

16 W

18 W

20 W

23 W

24 W

26 W

36 W

55 W

LED

4 W

5 W

6 W

7 W

8 W

9 W

10 W

11 W

12 W

13 W

15 W

16 W

18 W

20 W

23 W

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

Recently, many are thinking about switching to the use of LED. Where once there was one parameter such as wattage, now it is a full-fledged electronic lighting fixture with several basic technical specifications, a chip-based power supply, warm-to-cold light, and even three-color RGB.

Ignorance of the ratio of LED lamps and incandescent lamps is used by unscrupulous sellers and manufacturers, for example, indicating a brightness of 800 lumens and stating that it is analogous to a conventional 100 W incandescent lamp.

Power Ratio Table

The table shows the power ratio for led bulbs for home with open diodes, that is, without a bulb, which reduces brightness by 15-20%.

The most common misconception is that a 10W LED is the equivalent of a 100W incandescent bulb. But taking into account the fact that the matte bulb reduces the brightness by 20% and 1W is spent on heating the driver, in the end we get only 7 useful watts, which will give 700-800 Lumens on average. Which does not reach the required 1300 Lm at all.

Frosted flask example

Powerful LED bulbs use a bulb to protect your eyes, especially children, because it's blinding like welding.

An analogue of a 100W incandescent lamp will be two 650 Lumen diode lamps. When choosing, now you should not focus on Watts, but use the number of Lumens according to the correspondence table. The higher the brightness of the diode, the larger should be its radiator. This is one of the indirect ways to determine the power and find the right equivalent.

1. You can also find long G13 LEDs on sale, which can replace mercury ones in fluorescent lamps, while maintaining the current housing.

2. If your lighting for the room has not yet been designed and installed, then in order to reduce the cost of lighting, you can install LED panels under the Armstrong ceiling. The panel measures 60 x 60 cm and is 1 cm thick without a power supply. It can be mounted on almost any ceiling in an overhead way. In return, we get a huge brightness of 3600 Lm for 1250 rubles.

3. I prefer LED corn bulbs, they are well built and don't require a separate heatsink and bulb. The only drawback is the open electrical contacts of the diodes with low voltage.

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Main characteristics

The main characteristics include the following indicators:

lamp power, measured in W (watts);
luminous efficacy or light output (brightness), measured in Lm/W (lumen/watt);
color rendering index, measured in%.

What should be the illumination or how much light is needed to perform certain tasks? For this, the unit of illumination lx (lux) is used. It shows the level of illumination, which is created by a luminous flux of 1 lm, evenly distributed over a surface of 1 m 2.

Illumination must comply with the standards established by legislative documents (SNiPam). It's not hard to check. To do this, it is enough to make simple calculations. It is necessary to calculate the total power of the W lamps that are either installed in a particular room or are planned to be installed, multiply the resulting figure by the light output of the bulbs in lm (indicated in the lamp passport) and divide by the area of \u200b\u200bthe room in m 2. The obtained calculations are compared with the normative indicators.

Principle of operation

In incandescent light bulbs, the light source is an electric conductor. current, made of refractory wire, which, under its action, heats up and begins to glow. The conductor itself is placed in a glass flask filled with an inert gas. To connect to the power source, a base is used, which, for a standard light bulb used in everyday life, is marked E27.

A variety of incandescent bulbs are halogen lamps, which differ from the usual lighting fixtures only in materials and manufacturing technology. The addition of bromine or iodine vapor (halogens) to the inert gases in the flask brings the color rendering index closer to 100% and increases light output. This advantage was appreciated by manufacturers of car headlights. On the road, such factors as clarity of the object and illumination are important, which made it possible with the help of halogen lamps to realize these 2 important advantages in the production of car headlights.

In fluorescent lamps under the influence of email. current, a gas discharge occurs, which is emitted in the ultraviolet. This contributes to the glow of the phosphor, which covers the interior of the light bulb bulb. In terms of service life, such energy-saving products are dozens of times superior to traditional incandescent lamps. Currently, the range of manufactured lamps is extensive, they differ in the shape of the tubes, power and type of connection to the mains.

In LED light bulbs, the incandescent body is a semiconductor. When skipping email current, it generates optical radiation. In the region of the p-n transition, part of the energy is shed in the form of visible light. For the first time such a unique product appeared in 1962, since then its production technology has been improved, and today the market for this product is the most extensive. The effectiveness of LED lamps has been proven by time.

Correspondence table

LED lamps are superior to other types of lamps in the following key areas:

energy consumption;
light output;
heat dissipation;
impact resistance;
environmental friendliness;
fire safety;
service life.

Comparative characteristics of lamps in terms of power

Lamp type	Power in watts
Incandescent nia	25	40	50	60	75	100	120	150	200	250
Halogen	15	24	30	36	45	60	72	90	120	150
Lumines- cent	6	8	10	12	15	20	24	36	45	55
Light-emitting diode- naya	2	4	6	8	10	12	18	22	26	30
stream of light in lumens	220	415	550	710	935	1340	1700	2160	3040	3900

The table shows that the electricity consumption of LED products is the smallest, so lighting devices of this type are the most economical. How many lumens are in the lamp? This indicator depends on the power of the light bulb. The light flux in lumens is indicated in the table.

The color of the light flux for LED products can be very different. It is determined by the chemical composition of the LED. Sometimes, for this, different LEDs and light filters are installed in the design of the lamp, which makes it possible to obtain a glow in a wide range of the spectrum.

Light bulbs are still customarily compared according to the following indicators:

degree of heating;
anti-vandalism;
service life.

In terms of structural strength, the most fragile are incandescent and halogen lamps. The bulbs of LED light bulbs are made of impact-resistant material and can withstand drops from a small height. The situation is worse with fluorescent lamps, although their body is much stronger than the body of incandescent lamps, but from an environmental point of view, its destruction is detrimental to health. Therefore, they must undergo special disposal.

And finally, the service life, which is usually indicated in hours. The palm belongs again to LED lighting fixtures. In practice, their service life ranges from 25 to 100 thousand hours, and this depends on the production technology, the materials used and the manufacturer. Other types of light bulbs serve much less, for example, incandescent lamps - 1 thousand hours, halogen - 4 thousand hours, fluorescent - no more than 10 thousand hours.

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What is the difference between spiral and diode products?

The technical features of each lighting device are determined by the design characteristics and mode of operation. The principle of operation of an incandescent lamp is to set the temperature of the spiral at the time of supply of electric current. To ensure the safety of using the device and supplying its uniform beams of light, this part is located in a special glass flask filled with rarefied oxygen.

The standard type of spiral products has a very affordable cost, which, in fact, users considered as a way to save money. In this case, it is important to take into account the average operating period and the required amount of electricity consumption for the operation process.

When comparing the power of LED lamps and incandescent lamps, comparing service life and other parameters, it is more cost-effective to use the first option. Its design consists of a set of semiconductor diode devices, which are interconnected into one product. Each element is a crystal that produces photons as electricity passes through the device.

Incandescent lamps have only 2 clear advantages - price and flow direction, in all other respects they are far ahead of LED

Before the user makes a choice, a comparative analysis should be made.

LED lamps consume significantly less electricity to operate. Approximately, the consumption is ten times less than the spiral product.
An incandescent lamp scatters radiation by 360 ° C, which creates a complete illumination of the room, including walls, floor and ceiling. Most LED luminaires have a planar design with integrated light components. During the operation of the product, light is emitted at an angle of not more than 170 ° C.
The operational life of semiconductor light devices is much longer. This factor is directly related to the reduced heating of the crystals, the temperature of which does not lead to destructive processes, which is quite characteristic of incandescent lamps.

How to calculate matching power?

It will not be entirely correct to select an LED lamp by power, since these parameters indicate only the amount of electric current that lighting engineering requires for operation. The main indicator for any lighting equipment is the efficiency of the light beam, which is measured in lumens (lm).

Indicative figures indicate that the power of spiral models of 100 W equates to the performance of lighting with an intensity of 1200-1400 lm. The difference between the indicators depends on the degree of transparency of the case.

In order for the LED device to be able to produce these values during operation, its power should not exceed 14 watts. Often, consumers calculate the equivalent in terms of energy consumed, this is due to the fact that not all manufacturing companies indicate the efficiency of the light beam on their products.

It is for this reason that in order to conduct a more correct comparison, it is necessary to take into account the ratio of the power of LED lamps to spiral products.

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

Table of power of LED devices:

In addition, other comparative parameters should be taken into account, including the scattering angle. The criterion determines the area that is supposed to be illuminated.

In order for the room to be fully illuminated, experts recommend installing pear-shaped diode devices.

You should be aware that this series may not be suitable for all lighting fixtures. A semiconductor device with a flat platform with a scattering angle of not more than 170 ° C can replace the product.

It is important to remember that the more diodes are present in the device, the brighter and more uniform the light will be, but the cost per device will also increase. Often they acquire modifications with 4-8 diodes, as a result, 10-14W is obtained.

VIDEO: The real ratio of the amount of light from incandescent lamps and LED lamps

In order to replace uneconomical incandescent elements with diode devices, it is necessary to determine the base of the desired device. To do this, you need to measure the depth and diameter of the cartridge. Next, you need to follow the following recommendations:

No need to focus on the power of the device being replaced. Use the auxiliary lookup table above.
Luminous flux is an equally important nuance when choosing a light fixture. It is necessary to compare the value of the luminous flux of devices with the same operating angle.
Scattering angle. To illuminate the entire room, a light source with an illumination angle of 170 ° C will be sufficient. The option allows you to illuminate the floor and walls, while leaving the ceiling darkened. For wall or table-type products, it is better to use lighting equipment with a small illumination radius.

Light temperature. You should know that the temperature regime must correspond to the purpose of the room:

at a temperature regime of 4000-5000 ° K, daylight awakens cheerfulness, disposes to work, does not blind the eyes, is used in offices;
2500-3500°K - warm light has a positive effect on the comfort of psychological rest, it is used in the bedroom, living room, etc.

With all the variety of light elements, the vast majority of them are produced with a screw-type base - an Edison screw. And already among the first places are divided, respectively, by E14 and E27, which operate from a 220V network. In this marking, E means the type (Edison Screw), and the digital combination means the base diameter (chuck width).

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The main characteristics of the lamps

The comparison was made with an ordinary incandescent lamp with a power of 75 W and its equivalent - a LED lamp with a power of 9 W. You can read more about the main characteristics of incandescent lamps here, and LEDs are described in this article.

Incandescent lamp:

declared lamp power - 75 W;
required voltage - 230-240 V;
heating temperature - 2700 K (2426.85 ° C);
luminous flux - 935 lm;
light output - 12.5 Lm / W;
scattering angle - 360°;
average life - 1000 hours;
dimensions - 50 by 88 millimeters;
warranty is not provided.

LED lamp:

declared lamp power - 9 W;
required voltage - 170-240 V;
heating temperature - 2700 K (2426.85 ° C);
color effect - warm white light;
luminous flux - 800 lm;
light output - 88.8 Lm / W;
scattering angle - 240°;
average life - 40,000 hours;
dimensions - 60 by 110 millimeters;
warranty - 2 years.

In many respects, the LED lamp looks more attractive than a conventional bulb with a spiral. Such properties are provided by various designs. In an LED lamp, electrical voltage causes the inert gas to glow, and the electricity does not need to overcome additional resistance.

The efficiency of such lamps is much higher - 98% versus 65% for a conventional incandescent lamp.

Power of LED lamps and incandescent lamps

It makes sense to compare two types of lamps and according to their key parameter - the power of incandescent and LED lamps. That is, this electricity, which is converted into light.

The most significant advantage of LED lamps is their energy efficiency, which surpasses all analogues. Thus, one LED lamp consumes only 6 W of power at a similar luminosity, a fluorescent lamp consumes 12 W, and an ordinary incandescent lamp consumes 60 W.

A simple example: if you need to light up a room with 3 lamps, then the total energy that will be consumed by standard bulbs is 180 watts, while 3 LED lamps will only eat 18 watts. That is, there is a saving of 10 times! And the level of illumination is the same. Moreover, the spectrum of the LED lamp is more natural compared to the incandescent lamp, which "yellows".

Therefore, you can safely count on a reduction in the monthly rent at the same level of illumination.

For convenience, the correspondence of power consumption at the same level of illumination can be presented in the following table:

To put it simply, we can talk about the equivalent of an LED lamp to an incandescent lamp in a ratio of 1:10. That is, if you need to replace an incandescent lamp with an LED lamp of the same luminosity level, then you need to reduce the declared power of the incandescent lamp by 10 times and replace the LED lamp with the obtained indicator.

Results

Thus, the LED lamp is not just an analogue of an incandescent lamp, but is ahead of it in many key indicators: in terms of power consumption, the ratio of luminosity and energy absorption, and service life. It makes it much easier to fit into the norms of illumination.

Manufacturers of certified lamps provide warranties to protect buyers from manufacturing defects.

Another significant advantage of LED lamps: the use of aluminum and special heat-dissipating plastics as excess heat absorbers. This allows the room and the bulb itself to heat up less, respectively, increasing its service life.

Theoretically, the LED lamp is able to work 3 years in continuous mode. And if you turn it on for 2-3 hours a day, then the duration of its work will be more than 36 years.

Recently, it has become popular to talk about the dangers of LED lamps, but this only applies to cheap low-quality models. More about it here.

The luminous flux in LED lamps has a limit of 240 degrees, which allows you to direct the light concentrated down or to the side, preventing scattering in all directions and avoiding light and heat losses. This indicates that the LED lamp can be successfully used in small rooms such as a pantry or closet.

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LED lamp: design and main technical characteristics

LED lamp - a light source, the radiation of which is carried out by using several LEDs in the design, connected in one circuit. Unlike other types of lamps, it does not use a tungsten filament, various gases, mercury and other components dangerous to human life. It is an environmentally friendly device that does not emit harmful substances during operation and failure. According to its energy-saving indicators, it is the most economical among analogues. It can be used to illuminate streets, industrial or residential facilities and premises.

The design of this light bulb consists of the following elements: a diffuser, LEDs, a circuit board, a radiator, a power supply, a housing and a base. The last element can have two cartridge sizes: E14 (small) and E27 (large).

When choosing, you must be guided by the values of the main characteristics:

Luminous flux, measured in lm (lumens). The amount of light that spreads in all directions from a light source.
Power, unit W. The amount of energy consumed per unit of time.
Glow color temperature, unit K. Determines the color of the light flux coming from the radiation source. Incandescent lamps are mostly 3000K, this is a “warm”, yellowish tint. LED light sources are different, from 3000K to 6500K (“cold” color, with a slight admixture of blue).
Light output, measured in lm/W. A characteristic that determines the efficiency and economy of a light source. For products from different manufacturers, it is, of course, different.
Heating temperature, unit °C. Indicates the operating temperature for heating the glass surface of the lamp.
Service life, measured in hours. Determines the maximum service life in optimal and declared by the manufacturer conditions.
Color rendering index, CRI. Measured from 0 to 100 points. For optimal human perception of color rendering from a light source, the more points, the higher. A value of 80 CRI is considered normal.

Two LED lamps with the same power may differ in luminous flux and glow temperature.

This kind of energy-saving light bulb can be produced in two types: standard (pear-shaped) and in the form of "corn". This factor must be taken into account when replacing the light source in the luminaire. The latter type is not recommended, since in this design the LEDs are located on the outside.

Comparison of LED lamps and incandescent

For domestic use, a person uses an LN with a rated power of 40, 60, 100 watts. Let's analyze the compliance of LED lamps with incandescent lamps. The results are presented in the correspondence table. It follows from the data that the declared LN corresponds to the power of LED lamps of 5, 7 and 13 W, which is more than 8 times less.

The rest of their technical indicators are almost equivalent. The obvious advantage of SLs is their power consumption and longevity. Thus, replacing an ordinary light bulb in a luminaire with this energy-saving light source is economically justified, which is primarily confirmed by the ratio of LED lamps and incandescent lamps.

Performance Comparison

Lighting is mainly used in the dark, when a person is at rest and rest. For these conditions, soft (warm) lighting is considered favorable light. This corresponds to a color temperature of 2100-3500 K. Therefore, the emitted yellowish light from the LN is better suited than the white from the SL. In the light flux emitted by the LED, there is a blue color, which has a negative effect on human vision, especially on the unformed lens of a child's eye. Light bulbs that have a blue spectrum in their radiation are recommended for lighting workplaces in the office, as they stimulate human activity and productivity. Also, the flickering of LED lamps has a negative effect on the optic nerve. This is due to the low quality of the assembly and components of the power supply, as well as surges and voltage drops.

Before purchasing a SL, make sure that the luminous flux ripple is no more than 5%.

When choosing an alternative light source, it is necessary to be guided not only by the power of LED lamps and incandescent lamps, but also by other technical characteristics and factors. The high price of the trunk line is compensated by the subsequent savings in money spent on electricity consumption and a long service life. And the absence of a high temperature of heating the outer surface and the release of harmful substances into the environment during operation increases the safety of products.

Conclusion

To conserve electricity, there are alternative light sources to incandescent lamps - LED lamps. This article lists the main characteristics that affect their use. Above is a table comparing the power of incandescent and LED lamps. When choosing a light source, performance must also be taken into account. We hope this article will help you make the right decision.

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Power of LED lamps.

Lighting devices, which have existed for more than one century, are constantly being improved.

This is especially noticeable in the last decade. First, incandescent lamps replaced carbon lamps, then fluorescent lamps appeared, and today energy-saving and LED lamps quickly penetrate into our lives.

What is the quality of light output of LED lamps?

LED lamps have appeared relatively recently, their cost is still quite high.

However, their popularity is constantly growing due to their main advantage - significant energy savings.

After all, with the same power consumption, an LED lamp will provide a light output almost eight times higher than a conventional incandescent lamp.

So, a 3 W LED lamp is equal in light output to a 25 W incandescent lamp, and a 10 W LED lamp is equivalent to an 80 W incandescent lamp.

At the same time, the development of technology is increasingly bringing LED lamps closer in terms of the quality of light emission to natural light.

LEDs as light sources.

LED lamps began to triumphantly replace the fluorescent energy-saving lamps that have already become familiar to many.

The new LED lamps are lighting devices created using a light source built on completely new principles and with much better quality and light characteristics.

The most modern light sources based on LEDs demonstrate a whole range of advantages over their predecessors, including increased light output, reduced energy consumption, longer service life, environmental friendliness, high mechanical and fire safety.

Their only downside is their relatively high cost. In addition to the cost, the rapid introduction of LED lamps into everyday life is somewhat hindered by a certain conservatism of the main part of the people.

The power of LED lamps, a table of comparative characteristics.

Overcoming doubts in favor of LED lamps will help comparing different types of lamps. There are quite a few comparison tables, after studying which, you can understand that LED lamps really give more light with less power consumption (see table).

Thus, a 3 W LED lamp is equal in light emission to a 15 W fluorescent lamp or a 25 W incandescent lamp, and a 10 W LED lamp is equivalent to a 50 W energy-saving lamp or an 80 W conventional light bulb.

The power of LED lamps, the table of which clearly demonstrates the advantage of these devices, usually does not exceed fifty-five watts, however, the light emission of a lamp of such power will correspond to almost four hundred and fifty-watt incandescent bulbs. At the same time, heat generation will be an order of magnitude less, which means that LED lamps have the highest efficiency among existing lamps.

However, it is necessary to pay attention to the fact that all LED lamp power tables are filled with average figures, which may differ slightly for each specific product.

However, these differences are not so large as to prevent an unambiguous conclusion about the complete loss of traditional, uneconomical and obsolete light bulbs.

What is the power of energy saving fluorescent lamps?

The same can be said about energy-saving fluorescent lamps, which, although not to the same extent as incandescent lamps, are still significantly inferior to LED lamps. After all, it is absolutely realistic that a 3 W LED lamp is equal to a 25 watt incandescent lamp in terms of luminous flux, and a 10 watt LED lamp is the equivalent of the already most common 80 watt incandescent lamp.

In addition to efficiency, LED lamps have another important advantage - they are maintainable, which means that their efficiency increases even more.

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Correspondence of LED lamps and incandescent lamps

LED lamps consume less power than a traditional incandescent lamp. So an ordinary light bulb with a need of 60 watts in brightness will correspond to an LED lamp with a power of 9 watts, therefore, the power consumption will be less.

As a comparison, we offer a table that will help you understand the ratio of two light bulbs.

Attention! The table will help to make an effective replacement of lighting: from incandescent lamps to LEDs.

Table No. 1 Power of compared light sources

LED lamp power, watt	Incandescent lamp power, watt	Lighting brightness, Lm
8-10	60	700
4-5	40	400
25-30	200	2500
2-3	20	250
18-20	150	1800
12-15	100	1200
10-12	75	900

From this table, we see the difference in the power of lamps with the same brightness of light, and savings in favor of LED lighting.

How to choose LED outdoor lighting?

If you plan to replace incandescent bulbs with LED ones in your yard, it is important to consider several factors:

traditional street lamps have a power of 250 watts, and to replace such lighting, one E40 LED and 30 extra bright elements are enough. The total power of all this equipment will be 30 watts;
for outdoor conditions, light bulbs can be used with low power, but they will shine quite brightly;
it is important that lighting withstands environmental influences;
try to choose lighting devices only from rating manufacturers. When buying LEDs, ask for a product certificate.

What is important to know when arranging LED lighting for your home?

Indoors, devices with an E 47 base are most often used as LED bulbs. Such LEDs are found in various models, and are often used in the form of a ball, pear or candle.

Houses often install traditional lighting with a power of at least 100 watts, as they give off more light output. If we take the correspondence between the power of incandescent and LED lamps, we can say that the alternative is just a source with a power consumption of 3.2 watts, that is, an LED. Therefore, financial savings up to 31 times are created.

When choosing the type of lighting for your own home, it is important to compare all popular equivalents. For example, incandescent lamps have many disadvantages, ranging from a short life to brittle material. The LED equivalent does not contain mercury in its composition and does not break, even if it falls on a concrete surface. It is possible to replace one traditional lamp in a multi-lamp luminaire with several LED bulbs and win in the brightness of lighting. In addition, the light will become multidirectional and uniform.

Attention! LED lighting is recognized as the safest and most harmless to humans compared to other light sources.

The cost of LED lighting is quite high, however, it quickly pays for itself, since electricity is spent many times less.

Calculation of lighting with LED lamps

The ratio of watts of LED lamps and incandescent lamps leads to the fact that better savings cannot be found. Therefore, before making a purchase of LED equipment, it is necessary to calculate everything properly.

Look at the technical data sheet for the device. It contains all the values necessary for the calculations. We use the indicator of light brightness or luminous flux.
We determine the area of the room in which it is planned to install LED lighting.
Now we multiply the number of square meters by the room illumination value indicated in the SNIP, and then divide the resulting value by the luminous flux in lumens, which we took from the instructions for the lamp.

R- calculation of room illumination by LEDs;

P is the area of the room;

X is the normalized value of SNIP;

Y - luminous flux of the device, Lm.

Formula calculation example

Suppose you need to find calculations for a small room. Here we know the area of 13 square meters. m is a corridor. The SNIP norm for this room is 100 Lux, the luminous flux of our light bulb is 400 Lm, which means R = 13 * 100/400 = 3.25. From the value obtained, we conclude that we need 3, and preferably 4 such bulbs.

Important! When installing LEDs, beware of open electrical contact.

How to replace an incandescent bulb with an LED?

Today, it is practically not difficult to replace an incandescent lamp with an LED one, since most sources are sold with a suitable base. Therefore, it is enough just to screw in the LED-lamp.

In some cases, it is necessary to resort to changing equipment, which is quite expensive. Performing a complete replacement of electrical wiring along with lighting, it is necessary to purchase spot LED devices.

Important! Use LED lamps in optimal conditions. Remember that they must have time to cool themselves under the action of their own mechanism.

Benefits of using LED lights

Thanks to the following qualities of LEDs, they have received the title of a sought-after light source:

concentrated application in absolutely any industry;
gives off a large amount of light;
has no significant power;
made of durable material;
environmentally friendly device;
does not lend itself to accidental mechanical influences (if it falls, it does not beat).

Of the shortcomings, only the high cost is distinguished, but it also pays off well over time.

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For a long time, incandescent lamps did not have an alternative replacement. More recently, the electrical market has provided users with a wide range of more economical lighting devices with a longer service life - LED light sources.

In addition to the increased potential, this modification managed to completely replace the spiral element in terms of energy consumption, luminous flux power and brightness. However, in the selection of a product, you should know the ratio of the power of LED lamps to incandescent lamps. Thus, you can choose the most suitable product.