The LED light of the three speed switch, what is the problem of the light flashing constantly, ask t

This is a household LED light.

The problems that often arise are generally that the power supply inside is broken.

In the early years, because of the rush to replace the market of traditional lamps, LED manufacturers had to reduce the cost of the whole lamp, sacrificing two core indicators, power supply and light source. For a while, it did come down the first level, and ordinary consumers still bought LED lamps in the same way as they used to buy traditional lamps, just paying attention to the appearance of lamps and lanterns, and never thought about the power supply and drive problems of LED lamps. You can't see the difference between these two core indicators for a short time, but after using them, you will find that there are problems such as flickering and not lighting up.

Generally, in one to two years, the lamp beads turn blue, the whole lamp flashes, and the phenomenon of not lighting up will appear.

Production technology of light source and ballast, the core component of traditional lamps.

The threshold is relatively high, generally manufactured by large factories, and the quality is relatively guaranteed. The LED era has actually greatly reduced the difficulty of producing lamps and lanterns, so there are a large number of small and medium-sized enterprises and even self-employed people.

Entering the production link has caused all kinds of chaos. At present, in addition to the brand effect, the most critical thing is the difference between the light source and the power supply. Although LED lights are not expensive now, most of the ** products that can make your heart flutter should not be good products, and the life span is only 1-2 years.

The real L1 light keeps flashing, which means that there is a fault inside, and it is recommended to stop the power and repair it immediately, so as to ensure personal safety.

LED light with three-position switch. What is the problem with the light flashing constantly, the high jumper guitar, then this light flashing is going to be broken, you hurry up and change it.

The LED light of the block switch is constantly flashing, which may be the reason for the poor contact of the contact wire inside.

What is the problem of the LED light with the three-speed switch, the light keeps flashing? Ask for an answer. You flip the switch and it doesn't flash.

What is the problem of the LED light with the three-speed switch, the light keeps flashing? I ask for an answer, and the constant flashing is that the switch of the light is in poor contact, and there is no contact when it is not disconnected.

What's the problem with the constant lights? If the light keeps flashing, you can check it.

If the LED light is switched on and off in three gears, and the light keeps flashing, it should be the problem of the light inside.

Dear, hello, it is a pleasure to serve you, I am a master of automotive problem solving, the problems you consult, mine as follows; The three-gear color-changing family lamp turns on the switch, and only the edge grip is flickering but not bright, for the following reasons; There are basically two possibilities, one is that the three-gear contact of the gear display switch on the engine is poorly contacted, the second is that the three-light indicator bulb on the instrument is burned out or the contact is not good, and the third is that the segment key file display circuit is disconnected, but this situation is less, and it is basically the first two problems. You can find the wiring of the gear display switch, use a wire to ground the iron at one end, and connect the other end with each line in the gear display line, if each gear light is on, it is the problem of the gear display switch, if the third gear is still not lit, it is basically the problem of the instrument three-gear indicator bulb.

Summary. The third-gear light in the living room flashes as soon as it is turned on, and it will not be after a while: 1. It may be caused by poor wire contact, and the wire can be reconnected in this case.

2. It may be that there is a short circuit and other problems in the circuit, in this case, the circuit should be checked in time to see if it is normal, and if the circuit is damaged, the circuit needs to be replaced. 3. It may be that the bulb or ballast is faulty, in this case, the damaged parts can be replaced.

The third-gear light in the living room flashes as soon as it is turned on, and it will not be after a while.

The third-gear light in the living room flashes as soon as it is turned on, and it will not be after a while: 1. It may be caused by the poor contact of the wire with its brother, and the wire can be reconnected in this case. 2. It may be that the circuit is stupid and there is a short circuit and other problems, in this case, it is necessary to check whether the circuit is normal in time, and if the circuit is damaged, the circuit needs to be replaced.

3. It may be that the bulb or ballast is faulty, in this case, the damaged parts can be replaced.

It is a three-color color change skip color.

Lines are a problem. There should also be a problem with the ballast.

Specifically, it is necessary to test it.

Many people say that the lights in my house are turned off the switch, and the lights are still slightly bright or flashing, in fact, it is not the problem of electrical wiring and lights, it is now that energy-saving lamps and LED lights are more popular, after the switch circuit is long, the power supply reaches the lamp head through the capacitance between the lines, and accumulates to a certain voltage, so that the circuit starts to light the bulb. A 470k ohm resistor can be connected to the 220V inlet of the lamp head to release the induced current, which effectively prevents the light from shining or flashing when the light is turned off.

If the switching circuit is too long, the power supply reaches the lamp head through the capacitance between the wires, accumulates to a certain voltage, and makes the circuit start to light the bulb.

Three-control means that three switches control a bulb, that is, on the basis of dual control, add a double-pole double-throw switch in the middle of the connecting line of the two switches. If not, you can use a double open instead.

1. Three dual-control switch control:

Install a 220V relay (two sets of dynamic and two sets of conversion) inside the dual control switch. The contact connection is based on the principle shown in the figure below, the wire package is connected to 220V through a switch, which can be a dual-control switch or a single-pole switch or a self-locking switch.

It's the zero wire that breaks, not the live wire, and you can just swap the zero live wire.

Flash? It can only be said that the quality is not good, buy the brand.

Check it out and see if the switch controls the live wire.

Mine too. In a few days the power supply will be broken.