The lights are flickering and flickering, how to solve it

It's just the natural luminescence phenomenon of the fluorescent substance in the energy-saving lamp after being excited by high energy, and after the light is turned off, the flash will stop slowly when the energy supplement stops, and the lamp will not be damaged, so there is no need to worry.

When the fluorescent lamp (energy-saving lamp) is working, the argon gas in the tube is ionized to generate heat, and the heat causes the mercury to produce vapor, and then the mercury vapor is also ionized, and emits strong ultraviolet rays. Simply retrofitting the switch of the light to the firing wire can solve the problem. After the light is turned off, the light flashes and it also means that the quality of the energy-saving lamp is not very good, and the electronic rectifier is not.

In most cases, the switch control is installed on the zero line, the switch is still connected in the closed state, and the light has been in a live state, so the light will flash after the light is turned off, which is not only in the LED, if this is the case, the ordinary fluorescent lamp will also flash. But the reason you said that the two-way switch is always live is not correct, and if the two-way switch is installed correctly (the control is installed in the live line), it will not be charged after the light is turned off. However, this situation is not a quality problem, the light will flash because the lamp is still charged, this you can knock down the main gate at home, if the light is still flashing, it is abnormal, under normal circumstances, ordinary household circuits, the zero line is not charged, as long as the switch control is installed on the live wire, the electricity is disconnected, the light is not energized, and it will naturally not be lit.

It became like this after not coming home for a few days, is it broken?

The starter is burning out, or loose. There is also the voltage instability

The voltage is unstable, or the contact is not good.

Poor contact, see if it is loose.

The light bulbs in your home are always flickering, which can be caused by too weak voltage.

Turn off the high-power electrical appliances first and then see if the living room light will flash, and then flash the lamp is broken. There are many reasons why the electric light is flickering, it may be that the neutral wire and the live wire are reversed, or it may be that the electric light generates a self-inductive current.

Observe the flashing lights, whether there are multiple lights flashing in the room, and these lights belong to the same circuit, it is necessary to consider that the neutral wire and the live wire in the electric box are reversed; If the neutral line and the live wire are not reversed, it may be that the electric lamp generates self-inductive current, in this case, the flickering frequency of the LED lamp is relatively high, and the flickering frequency of the fluorescent lamp is relatively low.

Precautions for the use of bulbs.

Some houses use fluorescent lamps, which are equipped with ballasts to limit current and generate instantaneous high voltage, and starters to preheat fluorescent filaments and increase the voltage at both ends of the lamp to light the lamp.

The two work together with each other, when the contact between the ballast and the starter is poor, the lamp will flicker, and then the ballast and starter can be rotated to adjust the contact. If it still flickers after adjustment, it is possible that the ballast is faulty and needs to be replaced.

Check whether the live wire and neutral wire are reversed or whether the wires at the terminal are loose. If the wires are reversed or loose, reconnect them; 4. Voltage instability: report to the local power supply bureau.

Summary. It can be solved by following the following methods:1

Check the power cord of the LED light to make sure the power supply** is normal and there is no open circuit or short circuit. 2.Check the driving circuit of the LED light to make sure the circuit is normal and there are no damaged components.

3.Check the connection points of the LED lights to make sure that the contact is good and there are no cases of bad contact. 4.

Inspect the circuit board of the LED light to make sure that the circuit board is not burned, broken, or short-circuited. 5.Check the control circuit of the LED light to make sure the control circuit is normal and there are no damaged components.

6.If there are no problems with the above, you can re-flash the program of the LED light to return to normal working condition.

How to solve the problem of flashing after the LED light is turned on.

I'm still a little confused, can you be more detailed?

It can be solved by following the following methods:1Check the power cord of the LED light to make sure the power supply** is normal and there is no open circuit or short circuit.

2.Check the driving circuit of the LED light to make sure the circuit is normal and there are no damaged components. 3.

Check the connection points of the LED lights to make sure that the contact is good and there are no cases of bad contact. 4.Inspect the circuit board of the LED light to make sure that the circuit board is not burned, broken, or short-circuited.

5.Check the control circuit of the LED light to make sure the control circuit is normal and there are no damaged components. 6.

If there are no problems with the above, you can re-flash the program of the LED light to return to normal working condition.

The common causes are as follows:

1. The switch controls the zero line, and the live wire goes directly into the lamp. This is one of the most 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, and the lamp will glow.

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

2. The switch has an indicator light or uses an electronic switch Many switches have an indicator light inside, if the indicator light is energized after the light is turned off, there will be a current flowing through the lamp. Some luminaires use electronic switches, such as infrared switches, voice-activated switches, and remote switches. These switches do not completely shut down the circuit.

It will also cause the lamp to glow when the light is turned off.

Solution: Remove the switch indicator or replace the mechanical switch.

3. The wiring method of the dual-control switch is wrong There are many wiring methods for the dual-control switch.

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

The bulbs that have more bulbs for this phenomenon will be energy-saving lamps and the like, and incandescent lamps are generally uncommon, because energy-saving lamps and the like have control circuits in them, while incandescent lamps just do not have special control circuits.

Modern lamp principle

Fluorescent lamp. When the power switch is just closed, the mercury in the fluorescent tube is heated and evaporated by the filaments at both ends of the lamp to form a thin mercury vapor, and the high pressure generated by the ballast is added to both ends of the lamp, so that the mercury atoms are ionized and electrons, and the electrons collide with the mercury atoms after acceleration, so that the gas is quickly broken down, resulting in arc discharge and ultraviolet excitation.

Ultraviolet light then excites the phosphor applied to the tube wall to emit a soft light. It does not contain infrared rays, so its light is very gentle and does not hurt the eyes; Because it does not contain **, it is more energy-efficient to use; It also emits a lot of beautiful colored light. This is determined by the nature of the chemicals contained in phosphors, such as magnesium tungstate, which glows blue-white and glows reddish when coated with cadmium borate.

Vapor lamps. It is made up of various vapors sealed in a glass tube that emit light through an electric current. They are constructed a bit like fluorescent lamps, because multiple bulbs emit light at the same time from different angles, resulting in a shadowless lamp.

The above content reference: Encyclopedia - Lamp.

Summary. The situation where the light flashes after it is turned on is usually caused by the following possible causes: Bulb failure:

Aging of the bulb, broken filament, or poor contact of the bulb can all cause the lamp to flicker after it is turned on. It is recommended to replace the bulb with a new one. Faulty electrical connections:

Plugs and connectors in a vehicle's electrical system are prone to loosening, and loose plugs and connectors can cause lights to flicker. It is recommended to inspect and tighten the electrical connectors. Generator Problems:

If the current output from the vehicle's generator is unstable or the voltage is too low, it can also cause the lights to flicker. It is recommended to go to a professional shop to check whether the current output of the generator is normal. Outside interference:

In some cases, the flickering light may be related to outside interference. For example, the operation of electronics in other frequency bands can have an impact on the vehicle's electrical system, causing flashing lights. It is recommended to turn off other devices as much as possible.

The flashing of the lamp after turning on is usually caused by the following possible causes: Bulb failure: Aging of the bulb, broken filament or poor contact of the bulb can cause the lamp to flicker after being turned on.

It is recommended to replace the bulb with a new one. Faulty electrical connections: Plugs and connectors in the vehicle's electrical system are prone to loosening, and loose plugs and connectors can cause lights to flicker.

It is recommended to inspect and tighten the electrical connectors. Generator Problems: If the current output from the vehicle's generator is unstable or the voltage is too low, it can also cause the lights to flicker.

It is recommended to go to a professional shop to check whether the current output of the generator is normal. Outside interference: In some cases, the flickering light may be related to outside interference.

For example, the operation of electronics in other frequency bands can have an impact on the vehicle's electrical system, causing the lights to flicker. It is recommended to turn off other devices as much as possible.

Can you tell us more about that?

If your headlights are flashing, it is recommended to go to a professional car repair station in time to check and determine the cause. Timely resolution of related problems can ensure driving safety and prolong the life of hail collapse vehicles.

In our daily life, many people will install lamps of different specifications in their homes, so after the lamp has been used for a long time, or because of such problems, there will be various failures, but why flash and flash today to tell you about this problem, I hope this article can help you.

1. Why do the lights flicker and flicker.

1. If the lamp flashes and flashes, it is very likely that the neutral wire and the live wire are reversed, or it is possible that the lamp generates a self-inductive current.

2. If the zero line and the live wire are reversed, we can check whether the red line at the switch is connected to the red, if not, we will connect the red wire to the red line at the switch, in this case, it is very likely that the zero line is connected, we will adjust the zero line and the red line, the adjustment method is very simple, and the wire can be adjusted.

3. If the neutral line and the live wire are reversed, it is the problem of self-inductive current, in this case, the flashing frequency of the lamp will be relatively high, if it is a fluorescent lamp, the flashing frequency will be relatively low, the solution can be incandescent lamp, or buy a 220V relay, the relay coil can be connected in series in the circuit can be solved.

4. In this case, a lamp can also be replaced.

2. What are the precautions for using electric lights?

1. When we use the lamp, don't turn it on and off, frequent switching will speed up the damage of the lamp, and sometimes it will lead to poor contact.

2. When we use electric lights, we must choose LED lights, which are very bright when installed at home, and they are also very energy-saving, and it is very expensive to use ordinary bulbs.

The above is a summary of the relevant content and information about why the lights are on and on, I hope it can help you. If you have any other questions, you can leave a message at the bottom of the platform, and we will solve the problem for you in time. Finally, if you have any questions about home furnishing or home decoration, you can pay more attention to Qeeka Home.

Categories: Life >> common sense of life.

Analysis: Camera? It's a design that prevents red eyes from taking photos. First, let's understand what red eye is.

The occurrence of the phenomenon of "red eye": due to the distance between the flash axis of the flash and the light axis of the lens is too close, the pupil of the person will be correspondingly larger under the condition that the external light is very dark, when the flash of the flash shines through the pupil and shines on the fundus, the dense capillaries are reflected back by the bright red under the illumination of the light, and the natural phenomenon of "red dots" on the eye is "red eye".

The principle of red-eye protection.

In response to this "red eye" phenomenon, many digital cameras have also made corresponding "countermeasures". Generally, the "red eye" elimination function of digital cameras is mainly through the pre-flash of the flash, which causes the pupil to contract to a certain extent to reduce the reflected red light. Although this method can effectively reduce the "red eye" phenomenon, it is actually extremely limited, and does not really completely eliminate or avoid the occurrence of "red eye" phenomenon.

In addition to pre-flashing the camera flash or making some technical improvements, the more effective way to avoid the "red eye" phenomenon is to use diffused light, let the flash do some degree of refraction (shining on the ceiling, and then refracting on the portrait), or use an external flash to increase the distance between the lens and the flash, which can effectively eliminate the red eye.