LED is one of the most popular models among all products developed on the basis of LED lighting technology. It is an excellent alternative to conventional incandescent lamps and is a good competitor to LED lamps. Due to their economical long life and bright illumination, such lamps are increasingly seen as the main source of light in rooms of various purposes.

Applications

The human eye responds best to sunlight. Therefore, the more the light emitted is close to natural, the more comfortable we feel during a long working day. It is E14, thanks to its soft light, that can significantly reduce eye strain and thereby protect a person from rapid fatigue.

Creation of general lighting in residential premises, organization of integrated industrial, emergency, street lighting, use as obstruction lights, creation various kinds lighting - in all these areas, it is possible to effectively use energy-saving LED lamps E14.

Today LED lamp E14, the price of which ranges from 100 to 150 rubles, is available to the bulk of consumers. Such lamps are installed in almost all major retail chains, public and entertainment establishments. Entrepreneurs understand that it is more profitable to install LED lighting at an affordable cost than once again burdening themselves with constant maintenance and replacement of standard incandescent lamps.

Lamp E14 LED: parameters

E14 LED energy-saving lamps have the following characteristics:

• base type: E14;
• operating voltage: 220 V;
• glow: warm 3200 K;
• body temperature in working condition: no more than 40 ° C;
• service life: about 50,000 hours;
• Possibility to adjust the brightness.

Advantages of E14 LED lamps

The E14 7W LED lamp is designed as an innovative analogue of standard incandescent lamps with the E14 base type, and is also able to compete with previously widespread fluorescent lighting sources.

The main advantages of LED lamps, compared to the above lighting technologies, are:

1. Less electricity consumption.
2. The presence of more glow, the absence of a shadow effect in the area of ​​illumination.
3. The product of the brightest light with the possibility of its regulation.
4. Truly impressive service life without the need for replacement.
5. Ability to maintain a stable operating temperature.
6. Absence of substances harmful to health and potentially dangerous components.

Disadvantages of LED lamps E14

Despite its innovative status and the presence of a wide range of obvious advantages, like any other technology created by human hands, the LED lamp has its drawbacks. First of all, it is worth highlighting the decrease in efficiency and service life when used in luminaires manufactured with non-fulfillment of requirements regarding heat dissipation.

Moreover, a sharp reduction in the LED light source can be observed when used for a long time in an environment with a temperature of about 60 ° C and above.

Ultimately, the presence of too bright, blinding lighting can bring certain inconvenience to the user in cases where there are no special means for scattering, regulating the level of light and protecting eyesight.

Cartridge selection

Despite the fact that the E14 LED lamp has the ability to maintain a stable operating temperature, and also has protection against overheating, it is better to give preference when choosing this lighting option to ceramic, porcelain cartridges.

Porcelain cartridges have a longer service life compared to plastic counterparts. The most common ceramic sockets for E14 lamps consist of a ceramic body, copper or brass petals attached to screw contacts, a spring and a skirt where the base is twisted.

Often the skirt is the most problematic element of the cartridge. Selecting a cartridge with a soft aluminum skirt can be a nuisance. The malleability of such a metal leads to the appearance of small burrs when unscrewing and screwing in the lamp. Often, this element of the cartridge simply remains on the base when unscrewed.

In order for the E14 LED lamp to serve for the longest possible time, it is better to select a ceramic cartridge with a steel or stainless steel skirt for it. At the same time, you should avoid buying cartridges with yellow metal elements, which is typical for parts made of the least durable and short-lived anodized aluminum.

Additional qualities of LED lamps E14

The E14 LED lamp (candle) is distinguished by a whole set of additional user characteristics. Among them it is worth noting:

• the most efficient consumption of electrical energy along with its low consumption;
• almost complete independence of proper operation from drops and power surges;
• the highest resistance to the frequency of switching on and off;
• protection against mechanical damage and vibration;
• no flicker effect.

The modern LED lighting market is replete with various options for LED lamps: LED lamps differ in power, light directivity, bulb type, color temperature, luminous flux and many other parameters.

In this article, we will figure out how to choose the right light bulb with an E14 base, describing the most important parameters.

The lack of a wide variety of designs for incandescent lamps did not put the buyer before a choice: he chose the right base, bulb shape and power. Another thing is LED lamps. The durability of their work, together with their rather big price, makes the buyer make a more thorough choice.

And so, let's start with the first parameter that should be shaved off - this is power. It's no secret that LED bulbs consume electricity 5-8 times less than incandescent bulbs. In fact, to save electricity, we buy them. Therefore, you will not see the usual 25 or 40 W on the package. In order to choose the right bulb for the power, almost always the packaging indicates what equivalent power of the incandescent lamp corresponds to this LED bulb. Below is a comparison table of the power of an LED light bulb and an equivalent incandescent lamp.

As you can see, for bulbs with an E14 base, there are only 3 main rated powers: 2W, 4W and 6W. In general, for lamps with a standard bulb, the power range ranges from 2 to 7 watts.

There is one more parameter in the table - the luminous flux. This parameter, strictly speaking, shows how much light the light bulb produces. Luminous flux, which is measured in lumens (lm), is perhaps the only parameter by which light bulbs of different types can be compared. That is, an incandescent lamp with a luminous flux of 470 lumens produces the same amount of light as a LED lamp with a flux of 470 lumens. Therefore, replacing an incandescent lamp with an LED one, it is more correct to compare them precisely by this parameter. Unfortunately, manufacturers of incandescent lamps rarely indicate this parameter on the bulb, so you have to navigate by power.

Speaking of power, here's what should be noted. The LEDs in the LED lamp have different luminous efficiency. Luminous efficiency is a parameter that shows how much luminous flux a light source produces in terms of one watt of power (lm / W). For LED sources white light the efficiency lies in the range of 50 -130 lm/W. It turns out that the luminous flux at the same power for different lamps can differ by more than two times. As a rule, the efficiency of LED bulbs with an E14 base is from 60 to 80 lm / W.

The most efficient, among the publicly available light sources, are the so-called LED incandescent lamps. Their efficiency reaches 100 - 130 lm/W. By the way, the luminous flux can be roughly determined by counting the number of LED rods inside. Each rod consumes 1 W and emits approximately 100 - 130 lm of light.

Colorful temperature

The hue of the glow of incandescent lamps depends on the temperature of the filament. At low temperatures, the color of the filament is reddish. At a higher level, it is habitually yellowish, and at an even higher level, it turns into a bright yellow or almost white. As a result, we get a very convenient way to convey the shade of the glow, indicating at what temperature the body is heated, it is emitted. It is measured in degrees Kelvin (K). So, for example, the color temperature of incandescent lamps is approximately 2600 - 2800 K.

To indicate the shade of light emitted by LEDs, the same color temperature is used, which is essentially equivalent, because. such high temperatures in the LED crystal is not.

LED lamps available on the market can be divided into three color temperature categories: warm white (2700 - 3000K, Warm white), neutral white (3500 - 4000K, neutral white) and cold white (5500 - 6000K, cold white). The hue of the glow depends on the phosphor used - a special substance that covers the white LED.

If the lamp will be used in a residential area mainly at night, it is recommended to choose a lamp with warm white light. It is familiar and pleasing to the eye. similar to the glow of incandescent lamps. In addition, to a lesser extent suppresses the production of melatonin.

Lamps with a neutral white glow are recommended for use in rooms where artificial lighting is used during the day. This shade of white is in perfect harmony with daylight, and the blue spectrum, which is more present in neutral white light, increases attention, reaction speed and mood during daylight hours.

Cold White color much less common among lamps with standard socles.

By the way, in Lately, LED lamps with adjustable color temperature appear. It is regulated by a dimmer in the range of 2000K-2700K. Such lamps, as the manufacturers assure, are designed to create a comfortable and relaxing atmosphere at home. So far, two manufacturers have seen such technology: OSRAM (GLOWdim) and Philips (WarmGlow).

Directionality of the light flux

The design features of the LED are such that it emits light in one direction and in a narrow angular range. The LED, in the absence of any optics, shines into the front hemisphere. To form the necessary direction of the glow, secondary optics are used: matte polycarbonate flasks, focusing and diffusing lenses. Although the angle of light emission is almost always indicated in the characteristics of LED lamps, it is difficult to understand in what directions and with what force the light propagates.

Among commercially available LED lamps, there are only a few of the most common types of designs. The following are the most typical radiation patterns of LED lamps with an E14 base.

Candle

A light bulb with an elongated bulb ("candle") radiates light to the sides. Moreover, the less the light will shine into the front hemisphere, the sharper the top of the flask. Such light bulbs are suitable for lamps in which they are directed upwards. Suitable for lamps where they will not be covered by a lampshade or ceiling lamp, for example, in a chandelier.

spherical flask

As can be seen from the radiation pattern, a light bulb with a similar bulb shines mainly into the front hemisphere and is intended for installation in lamps, where it will shine downwards. Also, this option is perfect for a table lamp.

cone lens

Directional patterns from such lamps are very bizarre. The role of the cone lens is to direct the light away from the light bulb. Unlike light bulbs with frosted flasks, these are designed for installation in lamps with lampshades or shades, where they act as a uniform diffuser.

Corn

These lamps got their unofficial name due to the characteristic arrangement of LEDs reminiscent of the arrangement of grains in corn. The radiation pattern of LED lamps resembles LED incandescent lamps. Those. shines to the sides and into the front hemisphere and is suitable for general lighting of rooms. The glow angle, in this case, is 220 - 270.

LED filament lamps

The directivity pattern is radically different from the previously described lamps - they shine to the sides, i.e. suitable for general room lighting, but not for desktop lighting with a table lamp.

As you can see, radiation patterns, depending on its design, can take various forms. But it should be noted that such radiation patterns can only be obtained in laboratory conditions, where the walls do not reflect the light falling on them. In ordinary rooms, light is repeatedly reflected from the walls and the radiation pattern is not so “categorical”, although it retains the outlines obtained in the laboratory.

Brightness control (dimming)

Dimmers - dimmers, have long been used to adjust the brightness of incandescent lamps. Their principle of operation is based on cutting off part of the sinusoid of the mains voltage. As a result, the incandescent lamp does not work for the entire period, but only with short pulsations. But due to the fact that the thread does not have time to cool down in such a short period of time, these pulsations are hardly noticeable.

With LED lamps, it is not so simple. The drivers used inside, as far as possible, try to keep the lamp glowing at the maximum, and if they get too “cut off”, the sinusoids start blinking (quickly turn on and off). There is no need to talk about the durability of light bulbs in such conditions.

There are special versions of LED lamps, the brightness of which is regulated by dimmers. They are always marked with a special sign. They use a special driver that recognizes dimming. These lamps, as a rule, are 20-30 percent more expensive than non-dimmable ones.

It is important that the dimmer used has as low a minimum brightness as possible. Otherwise, the lamp adjustment range will be very narrow and, with the dimmer turned to the minimum, the LED lamp will still shine brightly enough.

There are other features: a quiet squeak when dimming, unstable operation of dimmers at low load, etc. In general, there is always a risk of incompatibility between a dimmer and an LED bulb.

Other features of lamp selection

There are many other features of the LED lamp. One of the most important criteria when choosing a lamp is the absence of pulsations. The flickering light overloads the visual and nervous system person. As a result, increased fatigue, dryness and pain in the eyes, headaches, irritability.

The level of pulsation is never indicated on the packaging. When buying, you should be guided by the following considerations. Cheap lamps using a quenching capacitor driver are more likely to flicker. In addition to the attractively low price, these bulbs are lighter in weight than bulbs with a quality driver. Hollowness is especially felt in light bulbs with an E27 base.

Can the famous brand on the packaging of the light bulb guarantee no flicker? Hardly. There are light bulbs with a terrible level of pulsations among famous manufacturers.

You should not buy lamps in Chinese electronic stores. The likelihood that you will get a really high-quality light bulb is small. Here is an incomplete list of all the shortcomings of light bulbs from unknown Chinese manufacturers:

• Overestimated several times the characteristics
• Low reliability (failure is possible within 2-10 weeks)
• Low efficiency of LEDs (at the level of 30-50 lm/W)
• Low color rendering index (CRI)
• High ripple level (up to 100%!)

LED lamps e14 Osram CREE Samsung Phillips in Moscow - the latest trend in lighting technology.

More and more consumers prefer to buy modern LED lamps instead of traditional counterparts. This approach to organizing lighting allows you to significantly save energy costs and implement any design solutions. LED lamps E14 are in special demand. This base is suitable for almost all lamps, sconces, chandeliers, so it is truly universal. It is recommended to buy e14 LED lamps at the Svetorezerv Factory - the leader in the production of lamps, fixtures, spotlights and panels based on LEDs.

Why LED lamps?

LED lamps with an E14 base are mainly used for organizing home lighting, there are many articles about these qualities. Some use them for installation in a restaurant, office and other non-residential premises, purchasing a large number of products at a wholesale price. But the greater demand for products is used in residential buildings.

This is due to the large number of advantages that LED "minions" (E14 base) have:

• saving electricity;
• environmental cleanliness and safety, due to the absence of mercury, neon and other toxic substances;
• low heating level;
• instant ignition;
• no flicker;
• long service life of LED lamps.

Many designers prefer to use E14 LED bulbs for creative lighting. Products have a classic Edison screw base, so most modern lighting fixtures are compatible with this type of lamp. But popularity is due not only to the practicality of using lighting fixtures.

LED lamps with E14 base provide a large angle of light dispersion and guarantee uniform illumination of the space, without creating shadows and highlights. Any corner of the room will be well lit for comfortable reading or computer work.

Products for every taste

E14 LED bulbs are made in various designs. "Candles", "balls" or "drops" - a variety of shapes allows lamps to be used in floor lamps and lamps. The most common form is the candle. This option can be bought for use in luxurious crystal chandeliers, because it provides powerful lighting in a room of any size. If you wish, you can play with colors, since LED lamps with E14 base are made in various colors.

If you are looking for LED lamps with E14 base, then you have come to the right place. Our store sells only the best products suitable for use in lighting fixtures. "Minions" are beneficial in terms of economy, safety and practicality, so this purchase will appeal to every consumer. If you want to buy a large volume of LED lamps with an E14 base, purchasing in bulk is suitable, while the price is advantageous primarily for the buyer.

Interested in delivery in Moscow? Call the specified phone number and get detailed advice from managers on issues of interest.

You can also familiarize yourself with the goods through the catalog, where indicated detailed description LED lamps E14, as well as see interesting photos

The E14 LED lamp is by far the most popular variety among the entire range of LED devices. In terms of quality characteristics, it is the most affordable alternative to the traditional incandescent lamp. At the same time, consumers appreciate not only a long service life (more than 50,000 hours), but bright and comfortable lighting, no response to power surges and a relatively affordable cost.

The spectrum of light and a wide capture radius have made such devices a leader and today they are increasingly being used as the main source of lighting in homes and offices.

Scope of application

A person perceives dim sunlight best of all - in addition to physiological comfort, it is able to influence the psychological component and contribute to work. The more the light emitted by an artificial source corresponds to natural (read - solar), the more calmly a person feels throughout the daylight hours. That is why, when developing the design of an LED lamp with an E14 base, it was decided to focus on natural light, which reduces the overall load and levels out fatigue.

Efficient and rational use of LED lamps e14 socket is recommended for:

• general lighting in houses and apartments;
• organization of production, industrial and office lighting;
• street lamps;
• additional illumination of individual zones, etc.

The average price varies from 95 to 155 rubles, depending on the region and place of purchase. Say, a fairly reasonable cost to replace all standard incandescent lamps and forget about the replacement and routine maintenance of lighting devices for at least 3 years.

The alternation of on / off cycles has a significant effect on the service life. The less often there is a change of such cycles, the longer the LEDs will last.

Technical specifications

An energy-saving lamp with a base has the following characteristics:

• base type: E14

The E symbol stands for Edison screw, the most popular type of fixture fixing, which is simply screwed into the socket. Digital combination 14 - the diameter of the base, measured in millimeters.

• operating voltage: 220 V;
• color temperature - warm 3200°K;
• body temperature during operation: within 35-40°С;
• service life: 50,000 hours of continuous operation;
• dimmable, that is, it is possible to adjust the brightness.

LED power 10W - alternative to 75-80W incandescent

Dimmable e14 LED lamps of different power - 7 W, 9 W, 12 W - make it possible to adjust the light intensity by changing the resistance in the circuit.

Pros and cons

For most of us, only one plus is obvious - that these are energy-saving lamps with a base similar to an incandescent lamp. On average, energy savings are over 30%. But at the same time, there are other less obvious, but very significant advantages not only over tungsten filament, but also over luminescent sources, which until recently broke records of popularity.

Different colors of the flask - white, matte, etc.

So, among the main advantages, we highlight:

• a more developed glow angle, reaching 180 °;
• there is no shadow effect in the light zone;
• due to dimming, you can adjust the brightness from an intense glow to a muffled one, corresponding to the night light mode;
• very long service life - under normal conditions, the lamps are able to work from 3 to 5 years without the need for replacement or maintenance;
• lack of heating during the entire operation, which does not spoil the plastic shades and does not leave burnt marks on the ceiling.

Contrary to the statements of some pseudo-specialists, the device does not emit any harmful substances either during operation or when it is turned off. No potentially hazardous components are used in the manufacture. LED bulbs do not provoke oncology and other diseases.

Let's not forget about the cons, especially since there are not so many of them:

• a sharp reduction in the operational life with frequent switching on and off;
• it is forbidden to install in places where the temperature often rises above 50 ° C;
• without a diffuser, the light is too bright and uncomfortable for the human eye.

Often, the price of an LED lamp with a base, which is overestimated by almost 10 times, is also included in the minuses. For comparison, an incandescent lamp can be bought for 13 rubles, and an LED lamp for 130 rubles. In terms of the operational life and energy savings, after 3 months of operation, such a source fully justifies itself.

VIDEO: How to choose a Led lamp? What's the secret?

How to choose the right cartridge

Oddly enough, but the quality and service life are directly affected by the cartridge where the E14 LED lamp will be screwed into. Even if its temperature does not rise more than 40 ° C, it is worth choosing ceramic or porcelain cartridges.

For convenience, an adapter cartridge has been developed that allows you to connect another base - from E14 to G9

Both the one and the other option are distinguished by a more durable device and, accordingly, a longer service life when compared with their plastic counterparts. Structurally, such a cartridge includes the following elements:

• ceramic or porcelain case;
• petals made of copper or brass, fixing the body with a screw contact;
• spring;
• skirt for screwing in the plinth.

In addition to the fact that the material of the cartridge itself is important, it also matters what the skirt is made of. The worst option is aluminum. It is a soft metal that develops dents and burrs over time, making it difficult to replace. Very often, such cartridges generally become disposable, when, when the lamp is unscrewed, the skirt clings to its base and breaks off the cartridge.

In order to avoid problems with operation, it is advisable to choose cartridges with a steel skirt or made of stainless steel.

It is strongly not recommended to purchase cartridges with a yellow skirt. It is made from anodized aluminium. This is an electrolytically coated metal that practically does not oxidize, but at the same time remains very soft.

A few more words in favor of LEDs

We have already listed the main advantages over incandescent, fluorescent and other sources. This section has been prepared as a summary of excellent user characteristics:

• optimal energy consumption - with a complete replacement of all sources in the house, it is possible to reduce the bill by at least 2 times;
• lack of response to voltage drops in the network;
• comfortable for the eyes and well-being spectrum of light;
• wide capture radius;
• during vibration, falling and other mechanical impact remains serviceable.

Possible problems and causes

In some cases, LED lamps are characterized by flickering both when the lamp is turned off and during operation. There may be several reasons:

1. Incorrect installation - first you can try to unscrew and screw the bulb again, if it doesn’t help, check all the contacts that should be working.
2. Mismatch between the power of the adapter and the light source - in such cases, it is enough to purchase more powerful block nutrition.
3. A significant voltage drop in the network - the drivers do not have time to correct the work, despite the fact that the jumps occur impulsively.

LED lamps do not burn out during such jumps, this also does not affect the service life.

1. Poor quality products - if everything works correctly, but the flickering still remains, it may be we are talking about marriage.
2. If the led lamp is powered by a backlit switch - since the circuit never opens, the lamp continues to glare even when it is off.
3. Incorrect connection - the “zero” phase is connected to the switch, and not to the lamp itself. Accordingly, the phase should go to the lamp, and not to the switch.

VIDEO: LED light bulbs, who is cooler? cheap Chinese or expensive PHILIPS

After buying a chandelier or lamp, many are faced with such a problem that there are no lamps for more than 500 Lumens on the E14 base.

With such a problem, they contact me quite often, they are interested in where to buy powerful E14 LED lamps in the form of a candle or a candle in the wind. Most of those who applied do not want to install energy-saving ones, so I could not advise anything good. A month ago, a solution from X-Flash for 820 Lumens appeared, which we will test. In addition, X-flash has the most advanced lighting technology with new types of dimming and light control, smart technologies for smart houses "Smart House".

• 1. Characteristics
• 2. Comparison with minions
• 3. Service life
• 4. Dimensions
• 5. Model range
• 6. Construction
• 7. Stuffing
• 8. Dimming
• 9. Power
• 10. Luminous flux
• 11. Heating
• 12. Coefficient of light pulsations
• 13. Driver
• 14. Color temperature
• 15. Angle of glow in the dark
• 16. Mass
• 17. Packing
• 18. Pros and cons of the product

Specifications

The review includes an E14 LED bulb with the designation "X-Flash XF-E14-TC-P-10W-4000K-220V". Such a base is also called a minion, the diameter of the base is 14mm. And for E27 it will be 27mm. respectively.

	Claimed	measured
Power	10W	8.9W
Light flow	820lm	856lm
Nutrition	85 - 265V
Ripple factor	less than 1%	1,3%
Colorful temperature	4000K	4090K
Dimensions	112x38mm.	110x38mm.
plinth	E14
Incandescent analogue	75W	75W
Dimming	No
Color rendering index	CRI 80	C.R.I. 84
Life time	50.000 hours
Medium temperature	-30° to +50°
Price as of 15.04.2016	349 rub
Guarantee	5 years

The table shows the correspondence between power and Lumen. The tested model at 856lm slightly outperforms the 75W counterpart at 800lm.

Important. Replacement under warranty usually takes place on a cash receipt, a sales receipt is usually not taken. A cash receipt printed on thermal paper fades after 2 years and becomes unreadable. That is, it will not work to exchange a defective product for a new one. Therefore, require filling out a passport for each with signatures and dates. Sellers fill them very rarely.

Comparison with minions

In the photo there are other E14 LED lamps, comparison from left to right:

• X-Flash is almost a candle, only rectangular;
• cheap Chinese corn;
• Feron candle 3W;
• ball ASD G45 for 5W;
• Philips G45 at 60W.

Philips is weaker by 30%, the rest shine worse by 2-3 times.

Corn and energy saving

An alternative is energy-saving lamps, the energy-saving lamp in the photo will be analogous to 60 watts. But now small rubber balls are sold everywhere, which bounce well off the ceiling, walls and floor. Children with these balls in the apartment easily break energy-saving lamps and chandeliers.

Many more comparisons:

• diode R39, for spots they are mirrored;
• candle in the wind, filament;
• X-Flash E14;
• filament candle in the wind;
• transparent candle on filament diodes.

Over the past six months, many manufacturers have tried to make a good E14 LED lamp, for example, Ecola, Camelion, Gauss, Genieled. Design limitations are associated with the small size of the minion hull. But they did not succeed in anything worthy, they reached a maximum of 600lm, and this is not enough for a lamp for 3-5 rounds. Many began to think about good lighting in an apartment or house, especially when they felt the difference between incandescent bulbs and LEDs. Once I also had such a transition process, I have been experimenting with lighting for 5 years. Most buyers do not know the standards and they do not have luxmeters. I usually recommend lighting from 200 Lux, and use the simplest calculation depending on the area of ​​​​the room.

Life time

The actual service life can be indirectly determined by the manufacturer's warranty for the product. For Chinese consumer goods, for example, ASD, it happens 1-2 years due to poor quality. In our case, X-Flash gives 5 years, which is 60 months, or 43,000 hours of continuous operation. Almost corresponds to the declared operating time of 50,000 hours. If the manufacturer is not sure about the quality of his lighting equipment, then there will be big losses due to the cost of warranty exchange.

Dimensions

..

The lineup

The test specimens differ from all others in their shape. They will not be able to replace the minion R39 and R50 due to the increased diameter, they are suitable for replacing the standard ones in the form of a candle and a candle in the wind E14. They are often installed in narrow ceiling lamps, where the spherical or reflective R39 R50 will not fit or will be difficult to screw in. Sometimes they look for an analogue of 100 W, the tested model is closest to it.

Main types:

1. power is the same 10W;
2. color temperature 3000K and 4000K;
3. there are models with dimming, marked with a dimmer icon;
4. the price on 04/15/2016 is 499 rubles.

Design

Structurally, the sample is made according to the popular scheme, a closed radiator and a frosted bulb. To remove the diffuser, it is necessary to insert a thin and rigid one at the point of attachment to the body and draw it in a circle. A white adhesive-sealant is applied along the edge, thanks to which the presentation is not lost and nothing needs to be broken.

The assembly turned out to be very high quality, the sample stubbornly resisted disassembly. Even having unscrewed the bolts that fastened the plate with LEDs to the heatsink, the LED module held firmly to the thermal paste. As a result, one of the led chips was damaged.

The cooling system is used the best for household diode bulbs. The aluminum cylinder is covered with heat-conducting plastic to avoid burns. That is, the entire body is a solid radiator. In cheap consumer goods, an aluminum plate is simply inserted inside, which is separated from it by an air gap.

On the one hand, a cover is pressed into the cylinder, on which led diodes are attached. It was not possible to get it in any way, it begins to bend. I had to cut the base and then make a cut along the product.

Filling

This model uses 14 LEDs in 0.5W format. The most popular power for the 2835 is 0.2W, but this is just a package designation, any crystal can be installed, from Chinese at 0.05W to branded at 1W. In this model of the diode, 2 crystals are installed, this can be seen under the phosphor. It was not possible to take a decent photo of the crystals, I need a lens for macro photography.

Dimming

Dimming is not supported in this model, but there are exactly the same E14 LED lamps with dimmer support. But they are more expensive 499 rubles.

Power

Let's check the energy consumption with a calibrated wattmeter.

After 30 minutes of operation, consumption dropped to 8.9W, while the luminous flux was as promised. We put 1 more plus sign, energy consumption is lower, but it shines as promised.

Light flow

To measure the luminous flux, we warm up the LED lamp with the E14 base for 60 minutes. We also measure the number of lumens without a diffuser. If conditions allow, then it can be removed and the brightness increased if the light is directed to the ceiling.

We multiply the readings of the luxmeter by 10 and divide by a factor of 2.16 and get Lumens.

According to the data obtained, it turns out that the number of Lumens is 4.3% more. Exceeding the promised parameters is found only in good lighting equipment, usually manufacturers cheat by 10-20% for the worse.

Heat

To measure the heating of the LEDs and the case, I will use an infrared pyrometer and a temperature sensor (thermocouple). Previously worked for 1 hour.

The matte diffuser slightly affects (only 3.5 °) the heating of the LEDs, which indicates high-quality heat dissipation.

Light ripple factor

The packaging says that there are no ripples, that is, they should be about 1-2%, taking into account the error of the Radex Lupin device. This figure corresponds to the promised 1% from the manufacturer. An incandescent bulb has a ripple of usually 15-17%.

Driver

The current source is assembled on a BP2832A chip. The pulsation coefficient is zero, which means that it fully performs its functions.

Weight

Package

Pros and cons of the product

The LED lamp E14 candle from X-Flash XF-E14-TC-P-10W-4000K-220V turned out to be very good, it has no worthy competitors. Refers to the C37 format, and will replace the spherical R50 and reflex R50. In terms of power, it will be analogous from 60 W, and almost up to 100 W, due to the color of 4000 Kelvin.

Main advantages:

• small dimensions;
• does not overheat;
• the number of lumens corresponds to the declared ones;
• power is lower, this is a plus, the less the better.

The total cost of operation will be lower than that of consumer goods. That is, 1 piece from X-Flash for 349 rubles. will replace you 3 consumer goods of the same capacity for 150 rubles. Cheap ones use various tricks and deceit to hide their real characteristics and appear to be of high quality.