The stores can meet a variety of high-power LED lamps, such as "candles" and "beads" 9 and 11 watts.
That's just candles and balls this power can not exist today.
I specifically bought a high-power light bulbs, and tested them. The results are impressive!
That's filament bulb candle and Gauss, on which is written "11W". Do you know what they really power?
4.7 W! This is 2.3 times less than promised!
The cases of these lamps indicate that they provide 720 lumens and replace 80-watt incandescent bulbs. In fact, they provide 590 lumens (then lied by only 20%), and replace the 60-watt bulb.
Another lie with a color rendering index: Unknown CRI> 90, is actually only 81.
But the candle and ball era. The box - 11 watts, 880 lumens, replacement of 100 watts.
In fact, 7.5 W, 580/642 lm and the equivalent of 60 watts. Here the power and luminous flux lied on the third, and with the equivalent of 40%.
I tested for 2500 models of LED lamps and for today, February 25, 2019, are fixed as follows maximum power and luminous flux of different types (more impossible to make technical reasons). Remember these figures!
If you see in a shop lamp, which has more power or luminous flux is specified, than in this table, you know - you are deceived.
Why is this happening? It all started a few years ago, when someone from the producers decided that if you write on the box power LED lamp a little more than it actually is, it will be better to buy, because the buyer, when he saw in the window of the two lamps from different manufacturers at the same price will choose the one that is brighter, and he will choose power. lies the race started! Second producer decided that he, too, is not a fool, and overestimated the power even more, and then three more. And as a result we have what we have written, 11 W, and actually 4.7 watts. In this race even including Russian Lisma, which has always maintained that strictly complies with all laws and standards: for filamentous light bulbs sold in Auchan, they had to write a "5 W" on chetyrohvattnyh lamps (and then no one will buy these "dull" lamps).
Here's what I wrote about it a representative of a very well-known brand:
"Consumers in the total mass is still guided by a clear indicator of" Power "at choice of lamps, so we have little to inflate the parameters of the power to differentiate on shelf.
On the one hand there is deceit, on the other hand we must understand that people consume lumens, and pay for power. Therefore, the actual financial expense in fact lower than that stated on the package. "
The most original way acted in this situation brand General. On the boxes in front of their lamps and figures watts is written the word "model". It turns out that it is not as though the power, and the name of the lamp.
In this case, the real (but also slightly inflated) output is written only in the instructions or in small type in the parameter list on the box. By the way, the actual power of the lamp 4.7 watts.
And one more rather unexpected thing. Here balls Era, written with 11 W and 9 watts. Even knowing that the real power behind any will say that the first lamp is still brighter, but not always so.
In this case, the power from the lamp was 7.5 and 7.1 W, and the light flux 642 and 670 lm. It is not surprising, "allegedly a 9-watt" light was a little brighter "alleged 11-watt."
Sometimes manufacturers even write a different capacity on identical lamps "to better sell."
Often the difference between the lamps significantly different in power, indicated on the packaging, is quite small. So power from filament balls and candles Gauss, written with 9 watts and 11 watts, it was almost the same - 4.66 / 4.74 and 4.70 W / 4.73 watts. Luminous flux is different, but very little: 547/590 and 519/590 lm lm. The reason is simple - no 9 and 11 watts does not happen and the power of the lamp is made as much as possible.
Note that there are manufacturers who almost do not lie with the power and luminous flux. First of all, it is foreign brands - OSRAM, PHILIPS, IKEA, Diall, Lexman, Auchan, Polaroid. But there are also Russian - X-Flash, Nanosvet, Goodeck, Robiton, Sky Lark, Videx, Voltega.
Unfortunately, manufacturers of LED lamps nobody controls. On the boxes you can write anything and anyone for that nothing will happen. According to the decree of the Russian Government № 1356 "On approval of requirements for lighting devices and electric bulbs, used in AC circuits for lighting purposes "half of the lamps, which are in the shops, in general should not be sold - it's ordinance prohibits the use of lamps with ripple greater than 10% and a color rendering index of less than 80, but the laws we have, as we know, always perform.
P.S. The maximum capacity of the table I do not give data for the ordinary-pear lamp socket E27, as their capacity can be increased simply by increasing the size of the lamp, and there are even 50-watt bulb giant sizes. More in the table, there is one exception - I came across one lamp G9 with a real 6 W and a luminous flux of 513 lumens, but I decided to ignore it, because it was very bad (100% ripple, low CRI, is extremely low energy efficiency).
P.P.S. I do not give here the results of all tests bulbs that I bought at this time. They can be viewed at Lamptest.ru.
© 2019 Alex Nadozhin