One lamp and two controls After turning off the light, the energy saving lamp flashes and flashes, w

1. After the energy-saving lamp is turned off, it flashes because the switch controls the neutral line, and the live line should be controlled correctly. The switch is connected to the fluorescent lamp through the neutral wire, and when the light is turned off, the filament of the firing wire will discharge the phosphor, and the lamp will be on. Because the circuit is not connected, the electrons on the phosphor have no time to be released, and the live wire does not reach a certain voltage difference between the phosphor, and the lamp is dimmed.

After a while, the electrons on the phosphor are gradually released, and the live wire reaches a certain voltage difference between the phosphors, and then discharges. That's why 'Twinkle Twinkle'.

2. There may also be a possibility to check whether the switch has been used for a long time, and the aging of the circuit leads to leakage.

Please check as follows:

1. There should be no indicator light on the switch, and having an indicator light is the reason why the light is flashing.

2. Turn off the light, use an electric pen to measure the L of the ignition wire you said, the electric pen is normal, and if it is not lit, it means that it is not the live wire, but the zero line.

3. Also turn off the light, use the electric pen to measure the l of the light you said, the electric pen is not bright for normal, the electric pen is bright to indicate that it is the live wire, and the electric pen is slightly bright to indicate that the zero line is in poor contact (it will also make the energy-saving lamp flash).

According to what you said, I guess there is a problem with the zero line in your house. You will do it yourself, and use an electric pen to measure the zero line in the electrical box. If it is faintly bright, find the power supply bureau.

If it doesn't light up, remove the original wire and connect the new wire, the other end of the new wire is connected to the lamp, and the light does not flash, indicating that there is a problem with the original zero wire in your home.

The dual control live wire is connected to the same line on L, L1, and L2 is connected to the lamp head, and both ends of the control line are the same. Your home's power is down from above. You take it and there is electricity, and you can replace the thread on the lamp head, I mean the two on the lamp head, and replace it if you don't know that it can be replaced with an ordinary one.

The switch should use the live wire, if the switch uses the live wire, you can replace the zero line of the lamp head on the top of the live wire.

The light will flash when the light is turned off, and there are two cases:

1. The line at the switch is a zero line, which causes the switch to break the zero line and the live wire is still supplying power, but there is no circuit, so the light source will flash and flash. (The light source must be energy-saving lamps, and this will not be the case with whiteness lamps).

Solution: If the switch wire and the live wire can be seen inside, connect the neutral wire directly and replace the live wire on the switch. Or at the main gate, you can replace the zero fire of the exit line.

2. The switch itself comes with an indicator light (the kind where the diode emits light).

Solution: Replace the switch or replace the diode.

1 .Check the energy-saving lamps to see if there is an aging problem. Try a new energy-saving lamp, if it is still flashing, it is not a problem with the lamp.

2 .Check the energy-saving lamp, whether the lamp feet are aged and rusty, and whether there is humidity nearby. If there is aging, rust, and moisture, there will also be slight and intermittent leakage.

3 .Check the switch circuit for leakage. You can use a pen to check the energy-saving lamp, the circuit at the outlet end of the switch, if the current leaks, the current is formed in the energy-saving lamp, and the lamp is easy to flicker.

4 .Check whether the line is reversed. Check whether the energy-saving light switch is zero and whether the live wire is reversed. You can use an electric pen to test whether the switch is disconnected from the positive pole, if it is disconnected from the negative pole, it will make the energy-saving lamp flash and flash after it is turned off.

If it's broken, you can't fix it yourself, so buy a new one.

<> "What is the reason for the light bulb flashing after the lights are turned off?"

1. The switch controls the zero-crack beam line, and the live wire directly enters the lamp.

It is possible that after the switch controls the neutral line, turning off the light is just disconnecting the circuit, and the live wire is still connected to the lamp, so the lamp will still emit light, reconnect the circuit, and let the switch control the live wire.

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

It may be that there is an indicator light in the switch, and the indicator light is still energized after the light is turned off, and there will be a current flowing through the lamp, and the lamp will glow.

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

It may be that the wiring loss method is wrong, and it will glow after turning off the light, and in this case, you can reconnect the wire.

4. The neutral line is electrified.

It is also possible that the neutral line is electrified, which will cause the lamp to still have light after the lights are turned off.

How to use light bulbs safely.

1. In order to ensure that it is safer, it is necessary to check whether the bulb has air leakage, if there is, it should be replaced with a new one in time.

2. In the process of use, you must choose a bulb with suitable luminosity, not too weak or too strong luminosity, or not to damage the user's eyesight.

3. After using for a long time, too much dust will accumulate on the surface, which will also affect the aesthetics. In use, if there is an accidental electric shock stool accident, the power supply should be cut off, and the human body should be separated from the power supply with wooden sticks, and then the injured should be sent to the hospital for rescue.

As for the reason why the bulb flashes after turning off the light, it is probably the reasons mentioned above, and you can understand it clearly before dealing with it.

(1) Energy-saving lamps use a switch with a luminous display switch (a switch that emits light through a light-emitting diode);

2) The switch of energy-saving lamps is reversed (installed on the zero line);

3) The control switch of the energy-saving lamp is too far away from the lamp body, resulting in induced electricity between the power line and the power line. The above phenomenon will not affect the normal use of energy-saving lamps, and will not cause energy loss.

If it is a continuous interval flash, it is: the switch leakage or the connecting wire of the switch has leakage, this small leakage enters the electronic ballast of the energy-saving lamp to rectify the energy storage accumulation, carries out an abnormal lighting work, and repeats again and again.

If it is only a flash of light, it is: due to the design problem of the electronic ballast, after the power is turned off, there is still a voltage in the electronic ballast, and when the voltage drops to a certain value, it is just enough to make the lamp light up.

As shown in the figure above, in the 2 double control through the tube in the single fire double zero, 1 through the tube zero line has an induced AC voltage of 30V (if 2 double control through the tube double fire single zero, induced electricity 60V), will cause the annular ceiling lamp flashing, do the test, it is found that even if the middle 2 double control through the tube in both ends of the zero line are shorted, there is still 1 through the tube zero line has induced AC voltage, resulting in the annular ceiling lamp after the light is turned off (the incandescent lamp has induction electricity, and the light will not turn off the flash).

Therefore, in order to make the dual-control ring ceiling lamp not flash after the light is turned off, it is necessary to thread the red live wire in the double-control tube in Figure 2 above separately and take different paths to avoid inducing electricity in the same tube.

As shown in the above figure, in the 2 double control through the tube in a single fire and double zero, 1 through the tube zero line has an induced AC voltage of 30V (if 2 double control through the tube double fire single zero, induced electricity 60V), it will cause the annular ceiling lamp to flash, do the test, and find that even if the middle 2 double control through the tube in both ends of the zero line are shorted, there is still 1 induced AC voltage on the zero line of the tube, resulting in the annular ceiling lamp flashing after the light is turned off. Therefore, if you want to make the dual-control annular ceiling lamp not flash after the light is turned off, you must thread the red live wire in the dual-control tube in Figure 2 above separately and take different paths to avoid inducing electricity in the same tube.

The dual-control switch was removed, and it was changed to a single control to see if it flashed, and I analyzed that it should be the quality of the dual-control switch. Seemingly electrified but not energized.

If the wire in the conduit is difficult to change, contact a small 220 volt intermediate relay at the load end, and then use the contact of the intermediate relay to control the driving load. The purpose of parallel connection to the intermediate relay is that the 30 volt electricity of alternating mutual inductance will not interfere with the coil of the intermediate relay, and the intermediate relay will drive the load when it starts working.

The reasons why the bulb flashes after turning off the light at night are: the switch controls the neutral line, and the live wire goes directly into the lamp; The switch has an indicator light or uses an electronic switch; The wiring mode of the dual-control switch is wrong; The neutral line is live。All of the above reasons cause the bulb to flicker and flicker after the light is turned off.

However, many people don't understand these reasons, when they sleep alone at night, when they see the light bulb flashing and flashing, they will associate it with the ghost movie, and when the light bulb flashes and flashes, something scary will appear immediately. In fact, it is these reasons that cause the light bulb to flicker and flicker, and there is nothing to be afraid of.

It may be because there is still static electricity in the bulb after the light is turned off, so it will flash and flash.

A flash is that the bulb has a slight leakage, you can exchange the neutral line and the live wire can generally be solved, there are other problems need to check the line in detail.

This is because when we cut off the power supply, there is still an induced current, and when the induced current flows through the bulb, it will flash and flash.

The line of fire entered the lamp. Turning off the lights simply cuts off the power to the fixtures. The fire wire is still connected to the lamp, and it can still emit a faint light before it flashes and flickers.