In order to answer these questions and choose the ideal light-emitting diode lamps from the price-quality ratio, I start a series of articles comparing the LED lamps tested in the lamptest.ru project. To date, more than 1,500 lamp models have been tested, including lamps of all famous brands that can be bought in Russia.
We compare the results of testing sixty LED bulbs designed to replace a typical 60 W incandescent bulb, tell you about the most important parameters of lamps that you need to pay attention to, and give recommendations on which lamps are better to buy.
First, let's determine how much light such a light gives. The parameter that determines the amount of light is called the "light flux" and is measured in lumens (lm). On the packaging of 60-watt bulbs, a luminous flux of 710 lumens is usually indicated. In "Wikipedia" and European standards, you can find a value of 806 lm. In reality, incandescent lamps sold in stores give less light and their brightness is directly dependent on the voltage in the network, which is often below the standard value of 230 volts.
We tested five incandescent lamps with a Viso Light Spion device at a voltage of 230 and 220 volts. The voltage was set with an accuracy of 0.1% with the help of Stabilizer, Suntek TDGC2-0.5 LATR and two Aneng AN8001 exact multimeters calibrated with the precision instruments Keithly 2000 Multimeter and GW Instek GPM-8212.
According to the results of measurements, with a voltage of 230 volts, the lamps give an average of 650 lm, and at a voltage of 220 V, 540 lm.
By the way, previous measurements showed that different incandescent lamp versions can differ greatly from each other, so on the basis of this table one should not conclude that the lamps of one brand are brighter than those of another.
According to GOST 29322-92 in the network should be a voltage of 230 V ± 10%, that is, from 207 to 253 volts. The old standard 220 V falls into this range, so the old equipment continues to work and in most outlets of our country it was 220 volts, so it remained. That's why we took the equivalent of a 60 W incandescent lamp to a 540 lumens of light (not 710 lumens, indicated on a package of incandescent lamps and not 806 lm from Wikipedia). Most likely, in real conditions, a LED lamp giving 540 lumens will shine no less brightly than a 60-watt incandescent lamp.
The average buyer, choosing LED lamps to replace a 60 W incandescent lamp, is looking for models on the packaging of which it is explicitly stated that they are equivalent to 60W. More literate looking for those on which a luminous flux of about 600 lm is indicated. Some manufacturers (IKEA, Robiton, Saffit) indicate on the package only the luminous flux.
Several brands of LED lamps have two series of lamps, which can be conditionally called "better" and "cheaper". So, Gauss has Gauss (black box) and Gauss Elementary (white box), Camelion has Camelion Ultra (green box) and Camelion (white box), "Era" has "Era" and "Era econom", Brawex it's Brawex Premium and Brawex Sense, Sky Lark has Sky Lark and Sky Lark Simple, Wolta has Wolta and Wolta Simple, Start has Start and Save, IKEA has Ledare and Ryet.
Lamps of the usual and economical series, as a rule, differ in the color rendering index (CRI, Ra). Good bulbs are higher than 80, and cheap ones are above 70. Exception is IKEA: expensive CRI lamps of this brand have a CRI above 90, and cheap ones have above 80. The color rendering index influences the correct perception of colors under illumination. With a low CRI, the colors look unnatural, the human skin appears grayish. This light is less comfortable. It is believed that for use in residential buildings, the color rendering index of lighting lamps should not be lower than 80.
There are brands, all lamps of which have a color rendering index above 80. These are IKEA, Artpole, Auchan, Diall, Lexman, Navigator, OSRAM, Philips, Polaroid, Geniled, X-Flash, "Nanosvet", " The housekeeper ». The brands ASD, REV, Saffit, " Onlite " all lamps, except for filament, have a color rendering index below 80. Feron, Jazzway, Smartbuy, Supra brands are distinguished by the fact that some lamps they have high CRI, and some are low, and it can be so chaotic that a "warm" lamp of some type has a CRI greater than 80, and exactly the same "cold" only above 70 or vice versa.
For today's comparison, the author selected matte LED bulbs-pears of famous brands that can be bought in Russia. Lamps were selected for which the equivalent of a 60 W incandescent lamp or a light flux of 540-710 lumens is indicated on the packaging, as well as lamps with a luminous flux of 540-710 lm. Transparent and filament lamp-pears, lamps replacing 75-watt, 95-watt and more powerful incandescent lamps, as well as lamps with other caps and the shape of the bulb, will be devoted to individual articles.
A very important parameter of LED lamps is the level of light pulsation. High pulsation is unpleasant visually and can cause health problems. Ripple above 30% is clearly visible, and to live in such a light is uncomfortable. Pulsation to 20% is absolutely imperceptible and, most likely, does not cause any harm to health, pulsation of 20-30% is hardly noticeable and does not interfere with life particularly.
The luminous flux of the lamps was measured with a Viso Light Spion, the power consumption of the Robiton PM-2, color rendering index, color temperature and pulsation with the Uprtek MK350D.
Doctors and scientists recommend the use of lamps at home with a "warm" light of 2700-3000 K, and the author joins their opinion. In comparison of "warm" lamps, 40 models of twenty-seven brands took part. Lamps in the table are sorted by the measured light flux.
Of the tested models of 14 lamps, on the packaging of which it is indicated that they replace a 60-watt incandescent lamp or give at least 540 lumens, in fact provide a smaller luminous flux. And the Supra, Saffit and REV 7W lamps give 1.5-1.8 times less light than promised, and can replace only a 40-watt incandescent lamp. However, overestimation by the manufacturer of the equivalent and light flux is observed in many brands. This is clearly seen in the table.
Four lamps have an unacceptably high ripple.
The color rendering index of many cheap lamps is about 73. Such lamps can be used in auxiliary rooms (corridors, halls), but in living rooms, in the kitchen and in the bathroom it is better to use lamps with CRI> 80.
Not all lamps work correctly when a switch with an indicator is used. For lamps that can be used with such switches, in the column "off." the table is set to "ok". The value "flash" means that the lamp flashes, and "mountains" – that the lamp glows weakly when the switch is off.
Two types of drivers (electronic boards that supply LEDs) can be used in LED lamps – linear and pulse. When using a linear driver, the brightness of the lamp depends on the mains voltage, and when the voltage decreases, the brightness decreases. As a rule, when using a linear driver, the brightness decreases by 10% at a voltage of 205-215 volts. The pulse driver stabilizes the supply voltage of the LEDs, and the brightness of the lamp does not change over a wide range of supply voltages. As a rule, lamps with a pulse driver can work without changing the brightness when the voltage of the network drops to 160 volts. The type of the driver is indicated in the column "type."
Of the tested lamps, you can confidently recommend buying eight.
- IKEA Ledare 303.059.76 LED1466G9 . This lamp is the most expensive of those who took part in the comparison, but it is worth it, primarily because of the high color rendering index of 92.5 (I note that of all LED lamps sold in Russia, only Ikea Ledare lamps have a color rendering index above 90). In addition, this lamp, the only one that participated in the comparison, supports brightness adjustment (dimming). Lamp parameters exactly match the claimed. The pulsation of light 10% is completely invisible.
- "NanoSvet L160 LE-GLS-8 / E27 / 827" . Excellent light bulb with honest characteristics at a good price. There is no ripple, with a switch having a backlight, it works. The only drawback is a year of guarantee.
- X-Flash 44788 XF-E27-A60-P-8W-3000K-220V . Excellent light bulb with a five-year guarantee and a good price. The only claim to the manufacturer – the equivalent is incorrectly stated: 650 lm it's not 75 watts
- Geniled 01210 E27 A60 7W 2700K . Excellent light bulb at a good price. Claims against the manufacturer – the equivalent and color temperature are incorrectly specified.
- Osram LED STAR CLASSIC A 60 6.8W / 827 FR E27 . A good lamp. The only drawback is that it does not work with a switch having an indicator.
- artpole 004296 . The manufacturer of this lamp heavily overestimated the parameters on the package (equivalent to 100 watts and 850 lumens, but in fact – 60 watts and 649 lumens), but the lamp is good, and if you know about this "feature", you can buy. With a switch having an indicator, it does not work.
- Polaroid 30411908 PL60-6273 . With this lamp the opposite is true: the manufacturer somehow understated its characteristics! The package shows 6 watts and 550 lumens, but in fact it turned out to be 7.9 W and 640 lm. With a switch having an indicator, it does not work.
- IKEA RYET 503.220.22 LED1512G8 . A good lamp, honest parameters, but a little expensive. With a switch having an indicator, it does not work.
Of course, these are not all good lamps
The first three lines of the table are Diall lamps (own brand of Castorama stores), Auchan (own brand of Auchan stores), Lexman (own brand of stores " Leroy Merlin " with which the European standards played a cruel joke, assuming a luminous flux of 806 lm as the equivalent of a 60-watt lamp. These lamps can be recommended for purchase, but as a replacement for 75-watt incandescent lamps, rather than 60-watt.
Lamp Wolta Simple 25Y60BL8E27-S showed good results, but it was tested two years ago, and the author can not recommend it, because now the lamps under the same article most likely have a color rendering index below 75.
The Feron lamp LB-92 25457 also showed good results, but almost the same Feron LB-91 lamp with a higher power the color rendering index was below 75, which means that the manufacturer does not pay much attention to what LEDs are put into the lamps, and in another game, everything may turn out differently.
Two Volpe lamps have inflated characteristics on the package, but give good light. We do not dare to recommend them, as other lamps of this brand have low color rendering indexes.
The Philips bulb 871829175275200 has a cap of the same diameter as the body. Because of this, the lamp does not shine completely back and when the chandelier is positioned upwards, the ceiling will remain dark. This lamp has a ripple of 22%, which is almost invisible.
The "Era Economy LED LED smd A60-8w-827-E27 ECO" also has a slightly noticeable 22% ripple.
Two "Era Econom" lamps with the same identical name "smd A60-10W-827-E27 ECO" came to comparison. One in a white box, the other in red. The one in white had a high CRI, but an unacceptably high pulsation, and the one in the red box does not have a ripple, but the CRI is low.
I would like to note one more unpleasant thing. Brands Gauss, Smartbuy, "Era" overstate on the packaging not only the luminous flux, equivalent and power, but also the color rendering index, indicating the value of 80, while in fact it is lower than 73.
Despite the recommendations of physicians, many prefer lamps with neutral white (4000 K) or even cold (from 6000 K) light. The author compared 20 lamps of fifteen brands, selected according to the same principle.
With the Lexman 8 and 10 W lamps and Auchan the same story – they are too bright to replace the 60-watt lamps and are suitable for replacing 75-watt lamps. Unacceptable ripple was detected in Ecola LED lamps D7LV82ELC and "Era Economy LED smd A60-8w-840-E27". Lamps OSRAM and Philips have a color temperature of 6500 K – this is too cold light, not at all suitable for living quarters.
If you are looking for lamps with neutral white light, the following four models of lamps can be recommended from the participating in the comparison.
- "NanoSvet L161 LE-GLS-8 / E27 / 840" . Excellent lamp – twin warm L160. The only drawback is a year of guarantee.
- "The era of LED smd A60-8w-842-E27" . The lamp gives 100 lumens of light less than Ninovet, but it successfully replaces a 60-watt incandescent lamp. A good lamp, its only drawback is incorrect information about the light flux, power and the equivalent on the package.
- Lexman 7-A60 E27 / 40 R . The lamp indicates the equivalent of 45 W, but it gives 557 lumens and can fully replace the 60-watt incandescent lamp. The warranty for this lamp is 5 years.
- Robiton 676-399 LED A60-8W-4200K-E27 . A good lamp. The only drawback is that it can not work correctly with a switch having an indicator.
Unfortunately, only the "cheaper" Gauss and Camelion lamps came to the comparison and did not get the models of other well-known brands. Part of this is due to the fact that many manufacturers focused on making larger lamps, and bulb lamps that replace the incandescent lamp less than 75 W, they do not have in the assortment. In the following reviews, we will tell you about the lamps of these brands.
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