Hello dear readers of my site site. And today, I would like to talk about why LED lamps blink.
Agree that such a factor as the lighting of houses is very important, and every person wants to make his house as light and bright as possible. But if you put a lot of light bulbs at home, then you will receive receipts for electricity with very large amounts. There is, of course, a way out in this situation, since there is now a very wide selection of energy-saving lamps. And the most economical lamps are now considered LED.
Many people have long switched to this type of lamps. I also installed LED lamps almost everywhere in my house. And he noticed that there was much more light from them, and he began to pay less for electricity. But not everything is as good as it seems at first glance. Many people, when installing such lamps, are faced with such a problem as the flickering of the lamps when the lamp is on, and also when it is off.
And this flicker is not only annoying, but also very harmful to your eyes. So what to do in such a situation? How to get rid of this flicker? If you are also faced with the same situation, then you should not panic.
Now we will analyze the most common cases of flicker, and also talk about how to get rid of it.
Why is the off LED lamp blinking.
Let's look at the main reasons for this phenomenon.
1. You have a light switch installed in your house.
The fact is that when you turn off the switch, the electrical circuit of the light bulb opens. And the backlight electrical circuit remains closed, and in this case, small pulses will pass through the light bulb. Here they will be the reason that the light bulb glows.
You can solve this problem very easily. You can simply take and replace the illuminated switch with a regular one without illumination. But not everyone will want to do this, as a backlit switch is much easier to find in the dark, and many have installed them for this very reason.
There is another solution. It is necessary to connect a resistor with a power of 2 W and with a nominal resistance of 50 kOhm to the lamp in parallel. You can connect a resistor in a branching box, or if you have a spotlight that is built into the ceiling, then you can do this directly on the lamp itself.
Watch the video on how it's done.
In addition to the resistor, you can also connect a paper capacitor. You just need to choose it with a good voltage margin so that it works longer. A capacitor with a voltage of 660 V, and which has a capacitance of 0.1 uF, is perfect for such a case. It is connected in the same way as the resistor.
Another helpful video.
But I want to warn you that if you do not have enough experience in the field of electricity, then it would be best to contact a specialist.
2. You need to check if your lamp is connected correctly.
The fact is that many, so to speak, "specialists" do everything in a hurry, and do not check the correct connection. In the lighting circuit, the phase must be fed to the switch, that is, it must go to break. And zero should be fed directly to the base of the lamp.
You can check this with a voltage gauge on the switch. Just before opening the switch, be sure to de-energize it. Remove the cover from the switch, apply voltage to it, and touch the clamping contacts with the voltage indicator in the off state. If there is voltage, then everything is correct, if there is no voltage, then the circuit is not correct.
If connected incorrectly, the glow of the lamps in the off state is simply inevitable. In this case, you need to make the correct wiring diagram for the lamp.
3. Poor lamp quality. You can check it only by replacing the lamp with another lamp. If another lamp works fine, then you yourself understand that you need to change the lamp.
Why is the LED lamp blinking.
Here, too, there may be several cases.
1. Very strong voltage drops in the network.
It happens that one of the neighbors can work with electric welding or use some other electrical appliances. And if you and this neighbor are on the same phase, then in this case you will have a voltage drop in the network. In the lamp, of course, there is a special driver to smooth out power surges. But if there are strong drops, then he may not be able to cope with them.
You can check this by measuring the voltage in the network with a voltmeter. Although with such power surges, all other electrical appliances will also work poorly for you, and you will immediately notice it.
2. Bad contact in the electrical circuit.
It often happens that when replacing incandescent bulbs with LED ones, they start blinking. The reason here may be poor contact in the base. I have experienced this many times in practice.
It is necessary to de-energize the lamp, unscrew the lamp, and look at the state of the contacts in the base. Ideally, it would be a little clean and bend them.
3. Some household appliances may cause the lamp to malfunction. Turn them off if possible.
4. Poor quality lamps. If you bought a new lamp, and it flickers, and the problems described above, you do not have. Then go back to the store and ask for an exchange.
5. Another option is that the service life has expired. This happened at my house. One light just went out. If it is pushed, it can light up and work normally. And the next time you turn it on, again it may not light up or blink.
That's all I wanted to say about the reasons for the blinking of the lamps. If you have questions, then ask them in the comments. Click on the buttons of social networks and subscribe to updates. Till.
Sincerely, Alexander!
