Turn off the switch light and turn on the switch light to be slightly bright

You're talking about LED lights, if so, please rest assured that it's not a big problem. It's the capacitors in the regulator that make the hell. It won't light up for a while.

Generally speaking, it is because of the aging of the line or when the quality of the line itself, although the electricity has been turned off, but there is still there, and the residual power generation is not completely cut off, so that the lamp is not completely extinguished.

The problem of neutral ground should be analyzed. Since the live wire has been confirmed to be controlled by the switch, the switch is all off, and the wire connected to the LED light is zero voltage, and the zero voltage cannot excite the LED light to flash. Then the cause of the light flash is to connect the LED light with the zero line, because the zero line connects all users of the whole building, including the outdoor transformer, if there is a clutter in the zero line to interfere with the pulse voltage, the voltage interacts with all the lights with ballast, causing the LED light to flash.

Check & Resolve:

1.Turn off the main switch first to see if it flashes.

2.Check whether the main switch in the home controls the zero line, if not, take off the zero line on the binding post to see if it flashes.

3.Use a shake meter to test the grounding resistance of the ground wire to see if the grounding is good, it is possible that the outdoor neutral wire is not well grounded and the resistance is large.

4.Find a reliable grounding point in your home, such as metal water pipes, concrete walls, and rebar. Connect the neutral line, let the messy interference impulse voltage be discharged from the wall filter with small resistance, and let the fire and neutral line have zero voltage.

Summary. Hello, I am your exclusive technician, attentive, careful, dedicated to answering your car questions, for you to find the corresponding problem solutions and solutions!

Hello. When the switch is turned on, the causes of the failure of the light include the failure of the switch, the failure of the light, and the failure of the line.

If this situation occurs, the first thing to do is to check the switch to see if the switch is caused by a virtual connection, and if there is no signal output or poor output signal on the measurement switch side of the measurement switch in this case, then the switch needs to be replaced.

The second is to focus on checking to see if it is. The signal line to the bulb can be normal, if it is not normal, then it can be said that the line is caused by poor contact, the focus is to check the line and relay to see whether it is caused by the line or the relay is damaged.

Thirdly, if the signal enters the bulb side is normal, but the display here can only be slightly bright, then it can be said that the bulb is caused by a malfunction, in this case, the bulb needs to be replaced.

It is recommended that it is best to go to a 4S shop or a professional car repair shop for inspection and maintenance, so as to avoid unnecessary damage to the vehicle due to improper operation by the repairman when repairing in an ordinary repair shop outside. When the time comes, the gains outweigh the losses. Thank you very much for this inquiry, and I hope my answer can be helpful to you.

Turn on the switch light slightly bright.

Hello, this question can give you a perfect reply, wait for me to sort out the information, I'm typing, 2-3 minutes, don't finish.

Hello, I am your exclusive technician, attentive, careful, dedicated to answering your car questions, for you to find the corresponding problem solutions and solutions! Hello. When the switch is turned on, the causes of the failure of the light include the failure of the switch, the failure of the light, and the failure of the line.

If this situation occurs, the first thing to do is to check the switch to see if the switch is caused by a virtual connection, and if there is no signal output or poor output signal on the measurement switch side of the measurement switch in this case, then the switch needs to be replaced. The second is to focus on checking to see if it is. The signal line to the bulb can be normal, if it is not normal, then it can be said that the line is caused by poor contact, the focus is to check the line and relay to see whether it is caused by the line or the relay is damaged.

Thirdly, if the signal enters the bulb side is normal, but the display here can only be slightly bright, then it can be said that the bulb is caused by a malfunction, in this case, the bulb needs to be replaced. It is recommended that it is best to go to a 4S shop or a professional car repair shop for inspection and maintenance, so as to avoid unnecessary damage to the vehicle due to improper operation by the repairman when repairing in an ordinary repair shop outside. When the time comes, the gains outweigh the losses.

What is the reason why the light switch is turned off, but the light is still faintly bright?

1. The electrical connection is reversed.

2. The energy-saving lamp is about to break.

The alternating current we use is 1 live wire, 1 neutral wire, the correct way to connect the lamp is to connect the live wire to the switch and then connect the lamp, the zero line is directly connected to the lamp, sometimes the installation is not standardized, resulting in the live wire directly to the lamp, because the neutral line is still controlled by the switch, so the light will not be on, but this is not safe.

Because the tube of energy-saving lamps is full of inert gases, it needs to be activated by high pressure and emit light. If the original part of the energy-saving lamp is broken, and the current has passed through the energy-saving lamp, the lamp may be slightly bright.

Solution: 1. Check whether the switch is live, if it is not live, please find out the live wire and the zero line according to the correct connection method 2, if there is a short circuit at the switch, it will also lead to the above phenomenon, replace the switch 3, save energy, please replace it as soon as possible.

1.There is a slight brightness of the situation, saying that Du Ming still has induction electricity.

2.There is a problem with indoor wiring.

3.The switch may leak current.

Solution: Allow.

1.Be sure to cut the line of fire. According to the principle, when the live wire is cut off, there will generally be no induced voltage. But the neutral line if and the live line.

Parallel traces induce a weak voltage from the neutral line.

2.Maybe you're having a problem with your indoor wiring. Solution, try to connect a 1m resistor to the ground wire (earth) from the neutral wire.

Or try to connect a 1m resistor between the two power cables of the LDE lamp.

3.The switch must not leak electricity, and the switch must cut off the live wire.

1. The switch controls the neutral line, and the live wire directly enters the lamp.

2. The switch has an indicator light or an electronic switch.

3. The wiring method of the dual control switch is wrong.

There are many wiring methods for dual-control switches, and if the electrician uses a different wiring method, it is easy to produce a glimmer after turning off the light.

If the above problems are solved, the lamps will still be on after turning off the lights at night, and it is necessary to consider that the neutral line is live. Theoretically, as long as the switch is broken, there will be no voltage on the zero line of the lamp, and the induced current will not be formed. In real life, it is very common for the neutral line to be electrified.

If the neutral line is not well grounded, the line is too long, the wire diameter is thin, or the neutral line current is too large, it will cause the neutral line to be electrified.

The switch relies on the contact and separation of the internal contacts to control the light on and off. If something happens – for example, a short circuit in a lamp, a damaged light starter that causes excessive current, etc., the switch contacts will burn out. If the contacts stick after burning, the switch will not be able to disconnect the lamp, so that the lamp will always be turned on.

No matter how bad the burn is, it will cause the switch to fail to open. ）

Generally, when the switch is burned, the key cannot be pressed or it is very laborious to press. At this time, it is necessary to consider the switch failure - the switch will not be burned out for no reason, and when solving the problem of switch failure, it is necessary to consider the switch quality problem and the lamp quality problem at the same time.

2.The neutral line needs to be switched in.

Ordinary switches naturally do not have this problem, but there are some switches, such as switches with indicator lights, smart switches, sound and light control switches, etc., which need to connect the neutral wire and the live wire into the switch at the same time when wiring.

If the internal design of such a switch is not reasonable, to put it bluntly, it is of poor quality, which will cause the switch to be disconnected, and there will still be a weak current inside. This part of the current is harmless to incandescent and fluorescent lamps, but if it is an LED lamp that is sensitive to electric current, it will cause flickering or fainting.

There are two solutions at this time, one is to replace the ordinary switch or the better quality switch. The second is to remove the indicator light.

First of all, if the incandescent lamp or fluorescent lamp faints, the problem will not be on the lamp, and the cause needs to be found elsewhere. But this is not the case with LED lights.

The starter of the LED light has a capacitor inside, and after the light is turned off, if there are lines with high current around the starter or the lines are dense, induced electricity may be generated. If the induction electricity is stronger, it will make the LED lamp glow slightly; The weak induced charge will cause the induced charge to accumulate inside the capacitor until the number of charges is large enough, and the capacitor will release it all at once, causing the LED light to flicker.

If it is too dense, you need to buy a better light starter - the higher the quality of the starter, the stronger the anti-interference ability.

There are also two types of faults that can occur in the line.

Zero live wire reversed.

After the zero live wire is reversed, the live wire is directly connected to the electric light. In this way, the switch is disconnected in time, and the voltage is still present at both ends of the lamp. In this case, if it is an LED or a fluorescent lamp, it will flash.

The reverse connection of the zero live wire will not cause the light to continue to glow after the light is turned off, but it is more harmful, so it is mentioned in this article. If there is indeed a situation where the neutral live line is reversed, the line should be changed as soon as possible.

Leakage of electricity from the lamp line. If the lamp wire leaks and forms a new circuit with the high potential line of other circuits (live wire or working neutral wire), the light switch will be short-circuited and render ineffective. As a result, the lights are always on.

In the event of such a malfunction, it is necessary to replace the wires at the distance from the light to the switch.

There is also a situation where the distance between the lamp line and other high-current lines is too close, resulting in inductive electricity. At this point, the lights will flicker or glow. The solution is the same as the "electric light" paragraph mentioned above.

In addition to replacing the starter to.

After turning off the switch, the light will be slightly bright, which can be solved by checking the wiring of the switch, the switch itself and the lamp.

1. Check whether the wiring of the switch is correct. We can find the wiring of the lamp, and then turn off the switch of the lamp, and then use a multimeter to test whether it is charged at this time, so as to judge whether our neutral wire and live wire are connected wrong. If it's wrong, we'll just adjust its position.

2. Check the problem of the switch. Like many families, after the LED light is slightly bright, it is good to replace the finger rough travel sensor switch with an ordinary switch, because at this time it is the problem of the sensor switch. We can't repair the switch ourselves, and the best way is to replace the switch directly.

3. Check the lamps. Buying a new lamp and replacing it can basically solve this kind of problem. The premise is to rule out our switch and wiring problems.

The reason why the light will still light up slightly after turning off the switch

1. The wiring problem causes the lights in the home to be slightly bright after the lights are turned off.

2. The light is slightly bright due to the problem of the switch.

3. The slight brightness of the lamp itself.

There are a variety of reasons why the bulb keeps being slightly lit after the light is turned off, and the reasons and solutions are as follows:

1. The switch controls the zero line, and the fire line directly stares into the lamp.

This is one of the more common causes of luminescence. After turning on the zero line of light control, turning off the light only cuts off the power circuit of the lamp, and the live wire is still connected to the lamp, so the lamp will glow.

Solution: Reconnect the circuit and let the switch control the live wire.

2. The switch has an indicator light or an electronic switch.

Most switches have an indicator light inside, and if the indicator light is energized when the light is turned off, then there will be current flowing through the lamp. Some lamps and lanterns use electronic lighting, such as infrared switches, voice-activated lighting and remote control switches.

These switches do not completely cut off the circuit, causing the luminaire to glow when the light is turned off.

Solution: Remove the switch indicator or replace it with a mechanical switch.

3. The wiring method of the dual control switch is wrong.

There are many wiring methods for dual-control switches, and if the electrician uses this method of terminal stuffing, it will glow after turning off the light.

Solution: Rewire the wire according to the neutral line inlet and control the live wire.

4. The neutral line is electrified.

If the above problems are solved, and the lights will still be on after turning off at night, you need to consider whether the neutral line is live. Theoretically, as long as the switch is broken, there will be no voltage on the neutral line of the lamp, and the induced current will not be formed. In daily life, the zero line band is only electricity.

If the neutral line is not well grounded, the line is too long, the wire diameter is thin, or the neutral line current is too large, it will cause the neutral line to be electrified.

5. Solution: It is difficult to solve the problem of zero line electrification, unless the transmission line is transformed, so that the lamps do not touch the conductor, such as: walls, roofs and steel keels, etc., can also reduce the luminous phenomenon, but can not be completely solved.

After turning off the lights, there is a faint light that will not waste electricity

When the lights are turned off, there is still a faint light, because there is a small amount of electricity passing through, and a certain amount of electricity will be charged. However, as long as the switch is turned off, it will not consume power. To consume electricity, a current loop must be formed, and as long as the wiring is not wrong, the light will not consume electricity.