How to choose a LED lamp

If a conventional incandescent lamps, everything was simply nowhere: they differed only in the capacity and shape of the cap, then replaced them which have led a large number of characteristics.

Characteristics of LED lamps

Light flow

Brightness of the LED lamp is characterized by a luminous flux which is measured in lumens (lm, lm). How bright you want to light up a room or office, you decide. But try to follow the recommendations of SNiPSNIP 23-05-95 *. Natural and artificial lighting:

To determine the power of the lamps and their number, use the table. it also reflects compliance with the usual light bulbs come to replace the LED.

The table shows how less energy LED bulbs consume. This is one of the main reasons for their popularity.

color spectrum

No less important role played by the choice of the lamp and the color of the emitted flux. For it meets the color temperature, which is measured in degrees Kelvin (K). The smaller the value, the warmer the light.

The most comfortable for the home are considered shades of yellow: they help to relax and unwind. Warm white light is recommended when working in an office environment. It is believed that it increases efficiency. A lamp with a cold white light are only for non-residential farm buildings.

voltage range, and the color rendering index

If conventional incandescent worked without loss of brightness at a voltage of 220 V, the majority of LED light enough for stability and lower values. That is, the owners of these lamps will not even notice power surges.

When buying, try to select the voltage range with a spread of values.

The extent to which natural color of objects will be transferred in the light of a particular lamp, determines the color rendering. It is denoted by the parameter CRI (color rendering index) or Ra. The higher the color rendering index, the illuminated objects will look more natural.

In residential areas it is recommended to use lamps with an index of at least 80 CRI or Ra.

angle of dispersion

The LEDs are arranged so that they can shine just ahead: deviates toward a very small part of the light. Therefore, pay attention not only on the quantity, but also on how they are arranged. From this will depend scattering angle. For different models of lamps it may be from 30 to 360 degrees.

Pulsating light

Light bulbs are often of poor quality pulses. It is invisible to the human eye, but can have a negative effect on the nervous system and lead to vision loss.

Get the lamp ripple range of no more than 5-15%.

Life and manufacturer

LED lamps have an average lifetime of 10 000 to 50 000 hours. The actual install is very difficult because the technologies are improving day by day, the service life is calculated only in theory.

such lamp warranty is given from 1 to 5 years, depending on the manufacturer. shop duty - to replace the lamp, if during the warranty period, it is out of order.

Manufacturers of LED technology a great many today. And not all of them indicate on the packaging accurate information about the lamp. About the actual measured values ​​of a particular lamp can be found by using the testing service lamptest.ru.

On its pages, collected a lot of reviews, articles and independent testing of LED products. You can not only learn all about the model of interest, but also to select a specific lamp for your needs: for this purpose, specify the required settings and click the "Show".

How to choose a LED lamp

To choose a lamp that will create a comfortable lighting will last a long time, will not cause harm to health and significantly save electricity, use the following tips.

1. The color spectrum of the lamp for the apartment should not exceed 3000 K. If you need the lamp for the office, stop the choice on the temperature of 4000 K. Lamps 6000 K and higher should be used only in business premises.
2. Choose a lamp with a range of voltage 110-230 V.
3. Color rendering index should be no less than 80 CRI.
4. Pulsation lamp should not exceed 15%. It is easily possible to check the store: screw the light bulb into the socket and bring her smartphone camera. At high ripple image to flicker.
5. Be sure to check the operation of the lamp. Almost all shops have similar electrical opportunity.