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How do LED lamps in Saransk

My yesterday's review of LED lamps Lisma unexpectedly aroused great interest for me. There are already more than 16,000 views, Learn more than 34,000 views. Survey dragged on yaplakal.com (more than 74,500 views) and fishki.net (more than 39,000 views).

As usual, some suggested that this was an advertisement (although in fact Lisma didn’t even send me samples, even though she promised to send lamps with return before the New Year). Others assumed that light bulbs are made in China, and in our country they are only being packaged. I found a video in which you can see how Lisma lamps are made.


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I will show you this video and answer the questions that were asked yesterday most often.


Lisma has the only production of electrolamp glass in Russia.









Each LED yarn has 26 blue LEDs coated with a common phosphor.



Due to the fact that these LEDs do not work at maximum power, they are not very hot and give very high efficiency up to 96 Lm / W.



Some have suggested that there is no driver in the lamps. In fact, in the lamp base there is a full-fledged driver providing very low light pulsation. The board has a current regulator chip, a transformer, capacitors, small details of the strapping.







All lamps pass the output control.





Lamps Lisma without any doubt the Russian product, even though they use Chinese LED filaments and a driver board made in China to order.

As I learned, on January 25, 2016, Lisma opens its online store and lamps can be ordered with delivery throughout Russia.

A very important question about quality and durability. At the Saransk city forum, the discussion of lamps Lisma has been going on for a long time, because the city residents became the first buyers of these lamps: forum.saransk.ru/topic/206592-lisma-predstavliaet-svoiu-innovatcionnuiu-razra . Alas, many lamps, especially 8-watt fail. Perhaps it is only the lamps of the first parties. Manufacturer's warranty - 2 years and lamps that have failed, exchange in places of purchase. My 8-watt lamp has been on for three days and I’ll probably add another 6-watt to it.

Many commentators wrote that lamps from Lisma are very expensive, and it is better to buy the same on Aliexpress and in Chinese online stores. No, they are not the same there. Those who think that all the bulbs on the LED filaments are made from the same components, are greatly mistaken. I tested several Chinese light bulbs on the threads and there was only one normal one (http://lamptest.ru/review/a60e27-6pc2/). It costs almost $ 8, which is much more expensive than a Lisma lamp. The rest had huge ripples of light, low CRI, inconsistency of the luminous flux declared, some of them were loud or buzzed. In addition, most likely the Chinese lamps in the flask have air, and not helium, like those of the Liismian ones. Well, again, the complete lack of warranty.

The lamps of Lisma have changed packaging. Now they are not sold in boxes, like mine, but in blisters.



Watch the video. There is a lot of talk, but the whole production process is also visible.


www.youtube.com/watch?v=MzTdOZHTgOw

I found this video in the Vkontakte group dedicated to Lisma LED lamps: vk.com/lismafilament .

If you still have questions, ask them in the comments.

ps This article, like the previous one, I wrote absolutely free of charge. I am sure that it is very great that in our country they are doing something good and need to be told about it.

© 2016, Alexey Nadyozhin

Source: https://habr.com/ru/post/367645/


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