Ford Mondeo MK4 2008: LED H7 Canbus Bulbs Fading & Damaging Rapidly in Torsional Lenses

Ford mondeo mk4, 2008. H7 headlights in torsional lenses, plus cornering lights.
I replaced the classic H7 bulbs with LED H7 canbus. The right LED lights up correctly.

There are problems with the left one. The cornering light turns on gradually and slowly - the more the cornering light shines, the more the led fades. If the bend lighting is 100% illuminated, the LED goes out completely.
The second problem is that if there is an LED, the turn signals on the left are slightly glowing - they do not want to go out and the interrupter goes crazy and flashes quickly.
The third problem is that after two or three minutes of driving the LED has been damaged (i.e. lights up, but as if only at 10% of its power and does not want to shine more). The first time I sent back for warranty, because I thought the LED was whacked factory, but they sent me a new one and it turns out that the history repeated itself - 2 minutes of driving and the LED dims and shines for about 10% of what it should.
The LED on the right shines nicely, strongly and there are no problems with it

Anyone can do something?
Where to find the reason

In this trash what you bought. Your CANBUS is a great g..no because there is no such thing is just an advertising gimmick. Is everything ok?

On normal bulbs, everything is OK.
So what? I have shit LEDs?

I was already looking for other LEDs. I found it cool and very bright. The cost is PLN 200. And the problem is not the cost, but how can I be sure that the car will not damage me such an expensive LED?

iDest wrote:

I found it cool and very bright. The cost is PLN 200. And the problem is not the cost, but how can I be sure that the car will not damage me such an expensive LED?

In the case of PWM control with drivers, LEDs should not be used.
If you already have to buy Osram or Philips bulbs.

Put this good LED on the other side and after two minutes you will know everything.

Gerri wrote:

Put this good LED on the other side and after two minutes you will know everything.

On the right side is also cornering light (controlled by PWM) and everything works

Why is the LED on the left damaged?
What is the reason for this? What phenomenon

iDest wrote:

What phenomenon

This phenomenon is poor product quality.

So out of curiosity I ask why you replace bulbs for leds?

Because the usual H7 has 1500 lumens, and one LED has 3600 lumens (although there are also 8000lm per bulb).

At the moment I drive on one led (because I do not have H7 to replace) and I will say that one LED shines better than two ordinary H7 (I have lens headlights)

That's why I insist on LEDs, because they shine much better than regular H7

Then install a 4700 micro 35V capacitor in parallel with the bulb's power supply to calm down the power supply.

Strumien swiadomosci swia wrote:

Then install a 4700 micro 35V capacitor in parallel with the bulb's power supply to calm down the power supply.

Couldn't be smaller? (e.g. on 16-18V)?

iDest wrote:

Couldn't be smaller? (e.g. on 16-18V)?

If you don't want it fried, put it on 35V.

So I will.
Will this protect the LED against damage in some way?

Because the one that came back from the warranty, before I put it in the car, walked for several hours connected to a 12V battery and shone beautifully.
And in the car 2 minutes and fell (shines as if at 10% power).
Someone will explain to me why this happened and how to protect yourself from it?

iDest wrote:

Someone will explain to me why this happened and how to protect yourself from it?

I wrote you that you don't have constant voltage in the car, only PWM. What else.

iDest wrote:

Gerri wrote:

Put this good LED on the other side and after two minutes you will know everything.

Why is the LED on the left damaged?

You didn't get it. If this good LED goes down two or three minutes after putting it to the left side, the car is to blame. If it shines - the poor quality of these LEDs is to blame.

iDest wrote:

Because the one that came back from the warranty, before I put it in the car, walked for several hours connected to a 12V battery and shone beautifully.
And in the car 2 minutes and fell (shines as if at 10% power).

The battery gives 12V, the car has 14.4. In the case of semiconductors (in this case LED) an increase in voltage by tenths of a volt can generate avalanche increases in current consumption. We know how Chinese inventions work - on the verge of safe use. In the specification they write that "at 12V they take some mA ...
In the case of complaints they will answer that "it's written 12V" and not 14.

iDest wrote:

At the moment I drive on one led (because I do not have H7 to replace) and I will say that one LED shines better than two ordinary H7 (I have lens headlights)

That's why I insist on LEDs, because they shine much better than regular H7

A few days ago I put H1 LED headlights. So more on trial and not so low-end SMD. They went into the traffic lights so as not to dazzle. The impressions are that glowing diodes cannot be considered as a point source of light which is the filament of a halogen bulb. Three diodes in a row are about 3mm. The diodes on both sides of the heat sink are separated by a distance of approx. 2-3 mm. Yes, light is much more intense than with halogen. But only near the headlight. Because the beam is not focused like a light bulb and as the distance increases, the light intensity catastrophically decreases. Spotlights give up trees, left and right fields - what should be a focused beam scatters to the left, right, up and down. Color also does the job, because LEDs with a lower light temperature guarantee much better visibility. It's cool to blink someone blue, but visibility (especially in the case of "wet" weather) is definitely better in lights more similar to white / yellow.

Quote:

The battery gives 12V, the car has 14.4. In the case of semiconductors (in this case LED) an increase in voltage by tenths of a volt can generate avalanche increases in current consumption. We know how Chinese inventions work - on the verge of safe use. In the specification they write that "at 12V they take some mA ...
In the case of complaints they will answer that "it is written 12V" and not 14

The LEDs that I bought in the specification have a supply voltage of 9-32V.

Will be buying some better and more expensive soon. I'll put the capacitors and see how it goes

Quote:

How many days ago I put the H1 LED headlights. So more on trial and not so low-end SMD. They went into the traffic lights so as not to dazzle. The impressions are that glowing diodes cannot be considered as a point source of light which is the filament of a halogen bulb. Three diodes in a row are about 3mm. The diodes on both sides of the heat sink are separated by a distance of approx. 2-3 mm. Yes, light is much more intense than with halogen. But only near the headlight. Because the beam is not focused like a light bulb and as the distance increases, the light intensity catastrophically decreases. Spotlights give up trees, left and right fields - what should be a focused beam scatters to the left, right, up and down. Color also does the job, because LEDs with a lower light temperature guarantee much better visibility. It's cool to blink someone blue, but visibility (especially in the case of "wet" weather) is definitely better in lights more similar to white / yellow.

I want to insert H7 into the lens, and it's quite different from a classic reflector without a lens

iDest wrote:

I want to insert H7 into the lens, and it's quite different from a classic reflector without a lens

Which does not change the fact that these LED "bulbs" are not approved and must not be used. If you participate in a traffic incident, you run the risk of getting compensation.

Your description indicates a corroded ground connection in the left lamp.

iDest have you covered the topic of these LEDs?

I still have a question - you could easily fit LEDs with fans in Mondeo MK4? - I mean, if caps can be easily put on, even though the LEDs have a larger "ass" than standard bulbs.

Fit fit.
I haven't solved the problem yet. I am looking to buy much better and more expensive LEDs. Maybe they can do it