Aleksey Nadyzhin writes, the coolest Runet Specialist in the ice-light bulbs: On the packages of LED lamps indicate the service life of 30, 40 or 50 thousand hours, but many light bulbs do not live and years. Today I will tell you in five minutes without any tools to modify the light bulb so that its service life has increased significantly.
First of all, I remind you that all LED bulbs are warranty from the year to seven years. If the light bulb has failed during the warranty period, it can be exchanged in the store where it was purchased. To exchange in large stores, like Lerua Merlin, even check and packaging will not need. In the LampTest.ru project, I test the parameters of light lamps, but I can not test reliability. I understand perfectly well that for most buyers it is more important that the light bulb has worked for a long time, and not any parameters.
The reasons for the failure of the lamps are mostly two - the burnout of the LEDs and the failure of condensers.
If the lamp power is reduced by a third, the life of the LED will increase significantly (of course, the brightness of the lamp will decrease). We will deal with this.
In the cheapest lamps are used very bad capacitors that do not live and years. There are no meaning to modify such lamps - they still will not live anyway.
For the modification, the lamps of the average price segment are best fit (there is a chance that there is better condensers). Power The higher the better (after all, after it is reduced, the lamp should shine quite brightly). Optimal lamps for 15 watts. Of course, it is better to take a lamp with a pulse driver, which have a built-in stabilizer and they shine equally brightly at any network voltage.
There are two types of lamps design - the traditional two-permanent (inside the case the driver board, over it is a round board with LEDs) and a single-board (the driver is located directly on the board with LEDs, and the capacitors are soldered to this card behind). For a simple and fast modification, you need a lamp with a union design.
From my stock, I found lamps, ideally suitable for alteration - Navigator NLL-A60-15-230-4K-E27 with a release date 0419 (I hope that modern lamps of this type are the same design). This lamp has a real power of 13.66 W, gives 1210 lm of light, has a CRI color rendition index (RA) 83, she has no pulsation completely. The lamp is equipped with a pulsed driver. Such lamps can be found for sale at a price of 120 rubles.
Of course, you can take a model with a warm light of the NLL-A60-15-230-2.7k-E27.
First of all, remove the cap. This lamp can simply take off his hand (a great effort will be required). Under the hood one fee. It is interested in us R1 and R2 resistors, they set the LED current.
The resistors are included in parallel, their ratings are 2.7 ohms and 5.6 ohms. Gently break the resistor R2, trying to do not break everything around the resistor.
That's all. You can wear a cap back.
The lamp power decreased from 13.66 to 8.83 W. The light stream decreased from 1210 to 925 lm. Now the lamp is capable of replacing the incandescent lamp of 85 W, which is also not bad. The lamp has significantly increased efficiency: it was 89 lm / W, it became 105 lm / W.
The main thing, the lamp has become much colder.
The temperature of the unclean lamp housing reaches 67 degrees, a total of 52 degrees modified.
The temperature on the LEDs included on the LEDs is incorrect, but it is possible to compare.
The temperature difference on the LEDs is very large - 21 degrees.
LEDs in a modified lamp will now work for a very long time, the case behind the capacitors (by the way, it will also be easier because of the smallest temperature inside the lamp). If they do not go, this light bulb will work for decades.
Several important comments:
- Only new light bulbs are suitable for modification (if the lamp works for a long time, the degradation of LEDs has already begun and it will not stop);
- when rewriting you lose the warranty on the lamp (however, if the lamp still fails and you stick to the plane, no one will understand that you are in the resistor broken there);
- Do not forget that when the lamp is included in the network, there is a dangerous voltage on the board.
I will continue to search for successful and mass models for such a modification, and as soon as I find interesting options, I will tell you how to redo them and, of course, measuring the parameters after alteration.
It is worth mentioning that on YouTube is full of more complex ways to improve modern light bulbs, which will be interesting only to those who know how to keep a soldering iron: