Why the LED lamp can flicker when the light is off

Hello dear guests and subscribers of my channel. Have you ever noticed that when the light is off, the LED lamp periodically blinks or even burns very dimly?

If you have encountered such a problem, then I will now tell you why this happens, and most importantly, I will explain how to fix it. So let's go.

For what reason can LED bulbs blink?

First, let's look at the main reasons for LED lights to blink when off.

1. Incorrect connection. Perhaps the neutral conductor breaks through the switch, and not the phase one.
2. Switch illumination. This is perhaps the main reason for the blinking of an off LED lamp.
3. Old or defective wiring with high leakage currents.

As you can see, there are not so many reasons for the flickering of LED lamps, but now let's move on to the elimination methods.

How to eliminate LED flickering

Incorrect connection

So, if you notice that the LED lamp flickers annoyingly when off, then the first step is to check what exactly breaks through the switch: phase or zero.

Note. All electrical work must be carried out by professionals. If you do not have special skills and tools, then the work should be entrusted to a professional electrician. Remember! Electricity does not forgive mistakes and neglect. Take care of your health.

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So, if, after checking, it was found out that a zero breaks through the switch, then you should fix this and bring the power circuit back to normal. And in most cases, after such a procedure, the flicker goes away.

The wiring is good and assembled correctly, but the flicker still remains. So we move on.

Illuminated switch or faulty wiring

Another common cause of lamp flickering is the use of illuminated switches.

This is very convenient indeed, but in some cases it causes unpleasant flickering. So, to fix this, there are several options:

• You could do something drastic and just ditch the backlit switch, and perhaps the flickering stops. If a multi-track chandelier is connected through a backlit switch, then most likely only one lamp flickers in it.

So in this case, you can do this: replace one of the LED lamps with an ordinary incandescent lamp. As a result, a small indicator current will flow through the installed incandescent lamp and the flicker will be eliminated.

• Also an effective method that will get rid of the flickering of LED lamps without replacing switches and even without replacing old wiring, is the installation of an additional capacitor with a capacity of 0.1 to 1 μF, designed for a voltage of 630 Volt.

In addition, only a ceramic or paper capacitor is allowed to the installation (the electrolyte may explode during a voltage surge). I highly do not recommend installing a resistor in a chain.

• If you have no backlight switches, the switch is connected correctly, and the lamps still glow, then the reason is most likely a wiring malfunction.

There is only one way out here, in the very near future, lay new wiring, and for a while, flickering can be eliminated by the method with a capacitor, which I described above.

In these ways, you can eliminate the unpleasant blinking of the LED lamp. Once again, I want to remind you: you should work with electricity with the utmost care! The main thing is safety.

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