LED lamps Cosmos: reviews, features and specials

LED lamps are becoming an integral part of our lives. They are produced by many manufacturers. Among the well-known brands - LED lamps "Cosmos". How are they profitable and should they replace the lamps of previous generations?

LED lamp

LED light diodes are semiconductors. Energy is created by the movement of charges, positive and negative. In general, it is released in the form of photons of light. In other types of lamps, the filling of the bulb is of great importance. And the LED bulb may be absent altogether. Even if it is, it serves only to scatter light and to protect the diodes from increased humidity and pollution.

LED lamps are almost not heated. Their temperature during operation is 50 degrees. As a result of the fact that the energy does not go to heat the lamp, almost all of it is aimed at the formation of light. Therefore, such a light bulb consumes much less energy (usually 8 times less than incandescent lamps). Instead of a 100 W incandescent lamp, enough LED power of 10 watts.

Manufacturers of these lamps claim that the life of their products from 30 to 100 thousand hours.

LED lamps are eco-friendly. They do not flicker like luminescent "housekeepers," their eyes do not get tired, they do not contain mercury vapor inside the structure. Therefore, they are easy to dispose of. They are sturdy, they can withstand falling from a small height. Their strength is equal to the strength of the plastic from which they are made. In addition, they do not emit infrared and ultraviolet rays.

LED lamps are easy to change. They can be taken without gloves - it's safe for the hands and for the lamp.

Although there are disadvantages and limitations to these lamps. So, they give a directional stream of light, which can lead to blindness and the effect of spots. Therefore, they can not be used wherever a uniform distribution of the light flux is required.

Do not use LED lamps and where the power sources are not very reliable.

And their main disadvantage is the high price. But if you recalculate the cost of one hour of work of LED, halogen and incandescent lamps, the advantage will be the first of this list. But this is in case if it really will work for as long as claimed by the manufacturers.

Installing an LED lamp is rational where the light burns a large amount of time - so it pays off faster.

Main parameters of LED lamps

The parameters on which the described lamps are considered are as follows:

• light flow;
• power;
• Type of cap;
• Light temperature;
• Coefficient of pulsation;
• Temperature range;
• voltage;
• degree of protection;
• Dimensions.

Luminous flux is the main point in the characteristic. Substandard Chinese diodes give about 80 Lumens per W. Firm (European, Japanese, Chinese) - up to 120 Lm per W. There are even super-bright - up to 190 Lm per W.

The amount of energy that the LED lamp consumes consists of the part for the LED and for the driver. In quality lamps, the driver takes up to 2 watts. In cheap substandard this part can be 4 times larger.

There are more than a dozen types and sizes of socles. Usually they buy E27 (conventional) and E14 (minion, in modern lamps and chandeliers). The bases of type GU4 are designed for point 12-volt luminaires with a contact distance of 4 mm.

The range of color temperatures is white from 2700K to 10000K. The light flux of such a lamp can have such shades:

• Warm as an incandescent bulb (2700K);
• Neutral, natural (4200K);
• Cold bluish light (6400K).

There may be other colors. But they are not used to illuminate the premises. The color depends on the LEDs.

Flickering of budget LED lamps can adversely affect the owner's well-being, especially if she works in the office or bedroom. It is not necessary to choose a lamp that is powered by a capacitor. It is better to use lamps with drivers with current stabilization.

The operating temperature range is taken into account when the lamp is taken to work in the frost or in the sauna. This includes the degree of protection from dust and moisture.

Voltage for our networks can be 220 V or 12 V.

Manufacturer of LED lamps "Kosmos"

The Cosmos brand was developed and created by KOSMOS Group employees. Its employees say that this is the second most recognizable brand in Russia (after "Philips"). The named company works 17 years. It owns 25 percent of all energy-saving and halogen lamps sold . The company's products are sold to more than ten countries.

Assortment of "Cosmos Group"

The company "Cosmos Group" works in five directions. These are lamps, lamps, lights, batteries, electrical equipment. Led technologies of their products save 90 percent of electricity. Guarantee for all lamps 2 years. They comply with RoHs, CE standards.

Although the company "Cosmos" is Russian, the LED lamp "Cosmos Led" is manufactured in China. But it's not fakes, but licensed factory products.

Types of LED lamps "Cosmos"

LED lamps "Cosmos" differ in the size and shape of the socle:

1. "Economy Globe" is a product of a spherical shape (indicated by the letter G.
2. "Economy candle" and "Economy candle in the wind" is used in chandeliers and lamps.
3. "Pear" (A).
4. "Corn" - with a dispersion angle of 360 degrees with diodes all over the surface.
5. "Economy-reflector" - (R) for spot illumination with a narrow angle of dispersion.
6. LED tube series "Classic" and "High-tech."

"Cosmos" produces lamps with E27 socles for replacing conventional lamps, E14 - for lamps and modern chandeliers, E40 - for outdoor use.

In addition to the usual, the company produces LED lamps and premium-class. Their advantages:

• The use of Samsung, Epistar chips allows to extend the service life, increase the light output from 70 to 90 Lm / W.
• They use an improved cooling system (in lamps more than 5W).
• Ceramic body and radiator improve the aesthetic appearance of the product.
• The color is 3000K, 45000K.

Price

The LED "Cosmos" lamps have a different cost. Their price directly depends on their technical characteristics. So, the A60 lamp by 7 W with the E27 socket costs 87 rubles. A product with a base E14 at 5 watts - from 120 rubles.

LED Light Bulbs E27

It should be noted that the LED lamp E27 "Cosmos" has the most used size and type of cap. It is most often used in our homes. "E" in the marking means that it is screwed, and 27 is the size of the diameter.

LED lamp "Cosmos" 11W with a base E27 is the equivalent of a 75W incandescent lamp. Its price is 500 rubles, weight 1 kg. It is intended for illumination of large rooms and offices.

Radiators for LED lamps

There are LED "Cosmos" lamps and radiator material. He can be:

• Aluminum;
• Composite;
• Ceramic;
• Plastic.

The radiator is needed to remove heat. The LED, which is very hot, shines dimmer. But now, with the development of technology, the presence of a radiator is not necessary.

Reviews about the lamps "Cosmos"

Buyers appreciated the LED lamps "Cosmos". Reviews say that users like these products. As the main advantage is equal light, radiated by them, and the quality of the lamps themselves, which work for a long time.

True, not everyone likes the LED lamps "Cosmos". Feedback from some users indicate that the legs of GU lamps are very flimsy and quickly disappear. Not all are satisfied with the price, which seems to buyers a bit high. Thus, a 26W lamp costs 146 rubles, while products of other manufacturers can be bought for 90 rubles. Although the LED "Kosmos" lamps last longer and do not fail. So, we can say that these lamps allow you to save significantly over a long period.

Some consumers verify the veracity of the data indicated on the lamp package. There was some discrepancy with the real indicators. So, the power instead of the declared 5 W is only 3.8 W, 5 W instead of 7 W. The luminous flux is not 340 lm, but 242 lm; Not 540 Lm, but 422 Lm. As a result, the light bulb, which should correspond to 75 W, actually shines like 45 W, and the LED lamp "Space" A60 - like 25 W. Therefore, you need to take a lamp of more importance than you need for a particular case. But in general, consumers believe that the quality of "Cosmos" lamps with E socles is quite decent, and they recommend buying them.