I heard that the 17 LED headlights are not lit, let s talk about what s going on

Generally speaking, if the light is not on, it may be a fault of the back line connection, or a problem with the fuse, it is best to go to the 4S store to check it.

Hello, this depends on what model you are, generally speaking, the LED headlight effect is better than the ordinary halogen headlight effect, you can also go to the test drive again, everyone's test ride experience is different.

Hello, the L-D headlights of this car, if they don't light up, are generally due to the bulbs, or the same people.

LED headlights, if it is equipped with the original factory, the brightness must be enough to use, if it is modified by yourself, this is more difficult to say. If it doesn't light at all, the fuse may have blown out.

Hello, the LED headlights of the vehicle are not lit, this phenomenon can check whether the line is faulty or whether the insurance is reliable.

Hello, if the LED headlight is not lit, this may be caused by a problem with the LED headlight bulb, or a faulty line.

Hello, I haven't heard of the common problem that the car has LED lights that don't light up, if it doesn't light up, you can go to the 4S store for free testing!

In this case, it is advisable to check if it is due to a faulty line.

If the LED headlights are not on, it is recommended to check whether there is a problem with the wiring, fuse or bulb.

If the LED headlights are not lit, it is recommended to check whether it is caused by the problem of the wiring or fuse.

Hello, in fact, this car headlight, its brightness is enough, if it is too bright, it is not safe for others.

Summary. Hello friend, if you install the LED light you just bought, it doesn't light up now, in this case, there are two reasons that will cause this not to light up.

The first reason is that your LED light does not have decoding. Without decoder. If this kind of LED light is installed, it is generally a friend who does not light up, and some cars need to be installed, this kind of decoder.

I definitely didn't buy this one with a decoder, so I installed it, and this one must not be lit. You have to buy this according to your car model, and the LED light with a decoder will light up.

What is the reason why the LED car headlights I just bought do not light up?

Hello, I have seen your inquiry, please wait for a moment and answer it for you immediately.

Hello friend, if you just bought the LED light, you will install it, and now it will not light up, in this case, there are two reasons that will cause the tease model to not light up. The first reason is that your LED light does not have decoding. Without decoder.

This kind of LED light, if you install it, it is generally not a friend who does not light up, and some cars need to be installed. I definitely didn't buy this one with a decoder, so I installed it, and this one must not be lit. You have to buy this according to your car model, and the LED light with a decoder will light up.

Car headlights are divided into high beam and low beam, the switch of the two bulbs of high beam or low beam is connected together, to light two together, if not on, the two are not lit together, if it is only on one side, the bulb that is not lit is burned, or the contact is poor. To test this, it's as simple as swapping the bulbs on both sides to see what the problem is.

If the bulb is broken, the bulb will have to be replaced. When choosing a bulb, be sure to choose the corresponding model. The interface of the headlights of the car is produced according to the standard of the socks and the seepage one, as long as the headlight model is right, it can be installed.

The slightly more famous bulb factories are all kinds of bulbs, such as the foreign "Ou Silang" and the famous "nine plus one" in China. Ou Silang is made of halogen bulbs, nine plus one is made of LED headlights, and generally speaking, the halogen bulbs of the original car are not bright enough, and now people choose LEDs for many lights.

On the manual and headlight assembly, there are headlight models. If you don't know, you can just take a look. In addition, you can also check it on the Internet to find out what model the car you are talking about.

First of all, check that the headlight bulb is not on, or remove the headlight fuse box to see if the fuse is burned out, and go to the repair shop.

If the headlights of the car do not come on, it may be that the headlight bulb is faulty, or the circuit of the headlight is faulty, or the headlight fuse is burned. The headlights of the car are very important Peishou Tong, the headlights play a role in lighting, and the headlights are indispensable equipment when driving at night. If the headlights don't turn on, most of them are caused by problems with the bulbs, and riders can replace them with new bulbs.

If it is caused by a problem with the headlight circuit or fuse, you can repair the circuit or Qin Feng.

Normally, the maintenance of the headlights is not done well, and it is very likely that the headlights suddenly do not light up when we are driving. It's a tricky thing to do. What should I do if the headlights suddenly don't turn on?

What is the basic reason? Today, Bian Xiao Automobile summed up a little knowledge about lamp scheduling. Friends can take a look.

What happened to car headlights?

What's wrong with the car headlights not lighting &mdash&mdash fuse blows.

When the headlight switch is turned on, the high beam and low beam are basically turned off. First check if the fuse box is blown or not, and then check if there is no reason for falling off between the light switch and the dimmer switch.

When using a knife to overlap the live wire of the dimmer switch with the high beam and low beam terminals, respectively, the following occurs:

1.The light is basically on, indicating that the dimmer switch is off;

2.If you take &mdash then, if the high and low beams are not on, the fault occurs between the dimmer switch and the headlamp or between the low beam.

3.If the headlight high beam is not on, check that the high beam indicator is on. If it is, it means that the fault is between the power strip and the headlamp; If it is not, it indicates that there is a fault between the power strip and the dimming switch.

4.If only one headlight is on and the other is not, it may be that the filament is burned out or the wiring is open, or the grounding is poor (the brightness of the headlight is weak).

What's wrong with the car headlights not lighting &mdash&mdash brake lights not on.

When driving, the brake light of the car does not light up, and the reasons generally are: the filament is burned out, the grounding is poor, the brake light switch is out of order, or the circuit is interrupted.

To test, first remove the brake bulb and test the filament. If the filament is in good condition, scrape the fire end of the brake light to the ground with a screwdriver or wire when pressing the brake pedal:

1.If there is a fire and the brake light is not on, it means that the grounding is poor;

2.If there is no fire, it may be a faulty brake light switch or a broken line.

Then use a screwdriver or wire to short-circuit both terminals of the brake light switch:

1.If the brake light is on, it means that the brake light switch is faulty and should be replaced or repaired;

2.If the brake light is still not lit, it means that there is a broken circuit in the line, and it should be ruled out after identification.

What's wrong with the car headlights not lighting &mdash&mdash bulb burned out.

I don't know if there are any riders who will burn out the bulbs of no matter how big or small the lights are in the process of using the bike. (Remember to upgrade the lights).

Here's why:1Voltage regulator failure, voltage is too high;

2.Poor contact of battery leads leads to excessive no-load voltage of the generator;

3.There is a short circuit between the generator armature and the magnetic field coil.

If the light switch is turned on and the bulb burns out immediately, check for a short circuit between the charging cables. If the bulb burns out frequently, check whether the voltage of the voltage regulator of the power generation and dust removal machine is too high.

The above is a brief introduction to why the headlights of Bian Xiao car are not lit, and a brief introduction to the headlights of the car that are not lit. Bian Xiao briefly introduced three aspects for his friend, namely the car fuse is blown out, the light bulb is blown out, and the brake light is broken. The specific reasons and methods are basically briefly introduced.

So how much do friends basically know after reading the profile of the car?

Millions of car purchase subsidies.

Eliminate the circuit problem of the electric bucket environment, it may be that the quality of the lamp itself is not up to par, consumers can judge the quality of the lamp according to the following aspects, and avoid the problem of short life of the lamp from the source.

1. Power drive.

The main function of the LED power supply, also known as the drive, is to provide a constant voltage and constant current current source for the LED lamp beads. Through the constant current mode, the driving current can be avoided from exceeding the maximum rated value, so as to ensure that the LED lamp meets the expected brightness and color temperature requirements, and the stable constant current input and output can more effectively extend the service life of the lamp.

Especially when dimming of luminaires is required, it is difficult to maintain the consistency of light illumination. A small increase in voltage can lead to an exponential increase in current, which can sometimes damage LED fixtures if not properly regulated. In addition, the heat generated inside or outside the component is not prone to bias caused by the constant current circuit, which reduces the forward resistance (reduces the voltage difference) and causes the current through the device to rise in the thermal escape phenomenon, which improves the reliability of LED lamps for long-term operation.

The inferior drive is basically equal to none of the protection against surge and voltage, so that the lamp beads work in extreme conditions, and the lamps may be dimmed, flickering, or even not lit soon after use, and there will be a safety hazard of fried boards.

Second, lamp beads. Lamp beads are LED chips, like the brains of lamps, some chips use new conversion technology to produce ultra-thin conversion layers, so that they can withstand higher junction temperatures and have longer heat dissipation. Because the LED continues to heat up during the working process, if the heat cannot be quickly dissipated, the LED lamp beads will fade sharply at high temperatures, and the life span will be greatly shortened.

The LED industry has a life certification called LM80, which ensures that the brightness of the lamp beads can be reduced by no more than 30% within 33,000 hours. Your house is lit up 5 hours a day, almost 20 years, which is completely enough. Therefore, the service life of lamps and lanterns with high-quality lamp beads will be longer.

3. Heat dissipation structure process.

The heat dissipation of the lamp will directly affect the service life of the lamp beads, and the heat dissipation of the hot air flow and the air convection form a high-speed circulation to ensure the most stable working state of the lamp.

The heat source of LED lighting mainly comes from two parts: the light source and the power supply. The heat of the light source part, usually pay attention to the effective contact area between the light source PCB and the fitting surface of the heat sink, the larger the effective contact area, the better the heat dissipation.

In addition, care should be taken to make the thermal conduction interface between the different media as smooth as possible. The heat conductive parts should be bonded tightly enough, and the contact surface gaps of the mated parts should be as small and small as possible.

The natural convection heat dissipation mode of LED lamps and lanterns also requires the effective heat dissipation area, so in general, the appropriate roughening of the outer wall of the heat sink can increase the effective heat exchange area.

Fourth, brand protection.

The brand's lamps and lanterns strictly regulate the process standards in the production process, and strictly control the quality of each lamp and lantern accessories. The lamps and lanterns have undergone rigorous inspection and aging process before leaving the factory, providing a solid guarantee for high-quality lamps and lanterns.