What to do if the light in the living room at home is broken. I don t know what component is broken.

If all of them don't light up, the grouper should be broken. Your ** is not clear enough, I don't know if your light has a remote control switch. What has a remote control function is that the remote control receiver is broken.

You've removed the lamp and sold it for a grouper for 50 bucks. If you use a remote control, it's about 100 yuan.

The whole light didn't come on. It is good to measure fluorescent lamps with a multimeter (resistive).

I don't know if it's a single bulb or a combination lamp, if it's a single lamp that doesn't light up, maybe the bulb is broken; If it is a combination lamp, it is impossible to break it all at once, then you have to check whether the base of the light box or the wiring place is loose; If it's all right, check the switch again, if the switch is good, then there is only the line; If you know electricity, you can take a look, if you haven't touched it, you can ask a professional electrician to take a look, safety first.

Hope it helps you ...

That should be the rectifier is broken. Try another one.

Go to the hardware store and ask, if the rectifier is useless, you can generally return other accessories. But you have to talk to the store first

Whether it is all lit up or individual is not lit, all are not lit, the gate cannot be closed, that is, there is a problem with the line. If the individual lights don't come on, it's time to change the lights.

What's going on? Different situations are solved differently.

See if the ballast is broken.

Find an electrician, the labor market is available, negotiate the price first, generally about 20.

I usually do it myself. I'm a man.

No one dealt with it for half a year. I really don't know how your husband behaved. Forget about the labor change.

If the woman is broken, find the man to fix it, and if the man is broken, he will fix it himself!

Electrician! If not, you can go to the place where you bought electricity and ask.

Of course, since the hundred self-repair, when the daylight is sufficient, turn off the light, and then tighten it to try, if the degree is not good, change a bulb (or lamp tube), if it is a bulb, it is recommended to use energy-saving bulbs.

Otherwise, it is a wiring problem, find the landlord to solve it, and ask him to contact the electrician.

If it doesn't work, it's because the voltage in your area is unstable (but is there such a place now?). A, there is no way.

Before dealing with the problem, let's first introduce what is an LED ceiling light! LED ceiling lamp is a kind of ceiling lamp that selects LED as the light source, it is installed inside the room, because the upper part of the lamp is flat, close to the roof installation, like adsorption on the roof, so it is called LED ceiling lamp. Let's answer the next question!

The LED light does not light up, mainly due to two reasons, one is the problem of the light source, and the other is the problem of the power supply. At present, the light source of LED lamps is composed of LED lamp beads, first disconnect the power supply at home, open the lampshade, and measure whether the LED light source is broken with a multimeter (the lamp beads are generally connected in series), if so, then look at the style of the light source, go to ** on the purchase of the same light source on it, there is a family called Qianhan, the accessories are quite complete, pay attention to the voltage range of the light source when purchasing, and buy the light source of the same voltage.

If the light source is detected with a multimeter, it depends on whether it is a problem with the power supply, the general LED ceiling lamp is the method of external power supply, then directly buy a power supply to replace it, some LED lamp manufacturers use a bad power supply, the power supply is the most likely to have a problem.

A friendly reminder! Some brands of ceiling lamps have a warranty period! During the warranty period, look for after-sales, after the warranty of the lamp, both after the warranty and do not want to change the lamp, then remove it to see if it is broken to repair and repair yourself, the general ceiling lamp to remove the lamp plate, are composed of two major parts, the drive and the lamp board, the lamp plate will not be broken, the lamp board and the drive can be bought on the Internet ready-made, buy it back and replace it.

The LED light is not lit, mainly for two reasons, one is the problem of the light source, and the other is the power supply.

problems. At present, the light source of LED lamps is composed of LED lamp beads, and the power supply at home is first disconnected and turned on.

Lampshade, use a multimeter to measure whether the LED light source is broken (the lamp beads are generally connected in series), if so, then look.

Look at the style of the light source, go to the ** on the purchase of the same light source on it, there is a house called Qianhan, the accessories are quite complete, when buying, pay attention to the voltage range of the light source, to buy the same voltage of light.

Source. If the light source is detected with a multimeter, it depends on whether it is a problem with the power supply, generally LED days.

The lanterns are all using the method of external power supply, so you can directly buy a power supply to replace it, some LED light factories.

The power supply used in the home is not good, and the power supply is the most problematic component.

After the LED light is turned on, some of the lamp beads are not lit, and it can basically be judged that the lamp beads are damaged. The damaged lamp bead can generally be seen with the naked eye - there is a black spot on the surface of the lamp bead, which proves that it has been burned. Sometimes the lamp beads are connected in series and then in parallel.

In the case of cutting off the power supply, remove the lampshade, cut the live wire and ground wire, remove all the lamp legs (card holders) and ballasts inside, and finally leave the metal chassis (white is the live wire L, blue is the neutral wire N).

<> LED ceiling light is damaged by improper use, if the LED ceiling light is just not lit, you can use the wire to connect several lamp beads when the lamp is not on, if it is not on, it means that the bulb is broken and needs to be replaced. The first thing to do is to cut off the power supply before replacing. When I repair LED lights, I always follow the maintenance principle of "simple first and then difficult", because we know that LED lights are divided into two parts, one part is the load part composed of LED strips or strips; The other part is to make the light strip or light bar light up.

When the lampshade fails, there is generally no room for repair, and even if it is repaired, it is not good-looking. Only replacements can be made. Go to the market and choose a favorite lampshade of the same size to replace it.

And the lampshade is the least likely to be damaged.

Need to use a multimeter, DC voltage level, measure the output of the constant current source has no voltage, if there is no voltage is the problem of the constant current source, if the measurement has a voltage matched with the constant current source, it means that it is good. Find a herringbone ladder or a high stool, go up, remove the shell of the ceiling lamp, find it with your hand along the edge of the lampshade, there are a few clips, and use your hand to sow 90°. The switch is not scorched, nor loose, then we need to open the main switch, use a pen to check whether there is electricity at both ends of the switch, if the switch on both strands of wire are electrified, the neon tube of the pen will emit red light, indicating that the switch is intact, it is due to the bad LED light.

Therefore, if a lamp bead is broken, you can choose to replace the lamp bead if you have the ability and equipment, but this practice is not recommended, because most people do not have relevant equipment at home, but this method is the most economical, but you need to prepare a lot of equipment in advance.

In this case, it is easiest to buy a light bulb yourself and screw it on. It's best to change it during the day, we can see it clearly during the day, and this time period is also relatively easy.

Of course, it still depends on what you buy, if it is a chandelier to find relevant accessories, if it is an LED headlight, buy a light source and change it.

The first must turn off the voltage switch first, and the second is to turn it in the direction to prevent it from breaking and hurting yourself.