Warum ich heute nur noch LED Dauerlicht kaufen würde! – Thomas Hedler – Profilux LED Lichtsystem

Hello and welcome.

It's me again Christian Laxander from Fototrainer.

com Today I have a special visit to Atlier 27.

Thomas Hedler of Hedler Licht.

I'm especially looking forward to it.

You know that I work with Hedler Light myself.

Thomas will tell you what the video is about.

Hello, so today is about the Profilux series from Hedler.

This is pure LED light and we want to explain this to you today.

Before we take care of the lighting and the technology in detail.

Do I have another important question for you, Thomas.

Why is light so important, maybe you can chat a little out of the sewing box.

Light is very important in my eyes because I can set accents with it.

I can put shadows.

I can control reflexes.

I can shape the whole picture much better with light.

Today's cameras are able to take wonderful pictures due to their high light sensitivity.

But brilliance and colours only come from light.

I experience this quite often in my workshops.

People come with very expensive cameras and lenses.

You don't have it that way with light.

A simple lamp or reflector can conjure up a completely different image.


You can set wonderful accents with a luminaire or a reflector.

And you can also create pictures.

You don't need a studio with 30 lights.

With two three lamps you can do great things and also relatively easy.

Because the LED continuous light is a controllable light.

I can therefore also use it for variable dimming.

Let's look at the lamps in detail.

Before we start with the 650.

There are also bigger ones, we will introduce them to you in a moment.

For a size comparison you can simply look in the background.

I just set it up for you guys there.

Thomas, maybe you can tell us about the most important basic features of your LED lights.

We build all luminaires in aluminium housings.

Enormously robust.

That also means very stable.

For everyday use, especially in the professional sector.

Each lamp has a swivel bracket that can be tilted via a safe brake.

Where I can steplessly adjust the device.

We have a quick tripod connection with safety.

This means that the luminaire should hang upside down and be loosened with a screw.

Can you only be unlocked with one button.

So she can't fall off.

What else we have with all luminaires.

A universal connection system allows us to connect all reflectors without restriction.

The are from our product range and some of them are already made by other companies.

Now there are two things I'd like to talk to you about.

One is of course the possibility what all your LED lamps have.

Ohh that's a little screwed down.

To dim them.

That's right.

Each LED can be dimmed from 100% to 5%.


At the same colour temperature.

The color temperature variations are about 20-40 kelvin.

I've noticed one thing and I'd like to talk to you about it.

You use a large LED on your lights.

Let me show you this.

That you can see it.

This is really just one big LED.

I've seen a lot of lights with a lot of little LEDs.

Surface luminaires, there are quite a few of them.

Maybe you can say something else.

That's right.

We work with an LED.

Because a light source means a shadow.

If I have many LEDs then I also get many reflections.

This has the following disadvantage in my eyes.

When I want to illuminate a surface, I can do it where I have a wide distance.

Have I got product photography, I see reflections.

Then I have this crystal effect with 100 little lights.

You can only shape light from a light source.

Simply put.

I can't get a spot from a fluorescent lamp.

Now there's one more thing I mentioned in the last video.

Your lights have a fan.

Even if you don't get too hot thanks to the LEDs.

You just can't hear the fan.

You get the feeling he's always out.

So the LED is directly connected to a pipe.

That's liquid cooling and there's a fan behind it.

This fan turns on automatically depending on the temperature.

But it is relatively large and flat, so it can run very slowly.

Which makes him soundless.

This is of course quite interesting for sound recordings because it is a disturbing noise.

If we turned it on at that distance, you wouldn't hear it.

We can just do that.

When switching on, the fan starts up briefly as a check and then you can no longer hear it.

I'm gonna hold my micro close.

You can't hear it.

Exactly and with the lamp also nothing can happen because it monitors itself.

It has a sensor on the LED.

A check in the power supply.

And a check on the fan.

Means if one component fails.

Switches the light off immediately and says Stop.

I'm not going on because there's a defect here.

So nothing can ever happen.

Let's take a look at the 1000 series next.

The big brother of the 650.

The 1000x.

This is basically constructed in the same way I think only the % number is still used as an indicator.


It has the digital display for dimming.

Now we have something special here the Profilux 1000.

And it still has the fresnel lens in front.

Maybe you can explain them in more detail.

The fresnel lens is as follows.

The light can be changed from 15 degrees to 70 degrees.

The LED is mounted on a slide, including the cooling system, and can be adjusted continuously.

This means that there is no creaking on a Teflon rail.

No clamping.

So you can regulate the light beautifully.

On teflon rails, what you're telling me again.

Yeah, it's like that.

Because it is heat thereby there is expansion and clamping.

With Teflon is always a clean glide.

There's no trouble there.

We can show that to you.

So if we turn you around.

Here we also have the display for the %.

We make even more power so you can see the light in the background.

And now we're illuminating a big angle.

I'll move over a bit.

That's the biggest angle.

Now I can adjust it continuously.

I hope you can see it.

Now we have the small spot, which corresponds to 15 degrees.

Thus I can process or set the light in advance.

Here I can set my cone steplessly.

Then, of course, the light output is also higher.

When I spote the light, the light is more concentrated.


Now we have to talk about performance.

One is called 650 and has 650 watts.

And we have the 1000.

Of course, it has 1000 watts.

How can I say that? How much light is really coming out? Because 1000 watts are read on many lamps.

That's right.

1000 Watt is the real power we have.

Measured in a dark laboratory.

Comparable to halogen light.

There are many manufacturers who say: I have 30 Watt LED.

That's 1000 watts.

Or 50 watt LED.

That's 1000 watts.

So these are really really measured 1000 watts comparable to Hallogen.

This one actually has more power.

It should be 1200 watts.

But we have real values.

There are a lot of people who would call this lamp 2000.

There are many models that have 100 watts of power consumption and 2000 watts of light output.

Well, that's not really possible.

With us they are real values.

And we'll stick to it.

You are a bit conservative with the information because the lamp gets dirty over time etc.

Because it loses performance over time? No, not even that.

So we guarantee 50k operating hours.

With the same colour temperature and the same power.

With this device, for example, you can see a service light here.

This service light appears at 25k operating hours.

Then it flashes.

You will see it and then look at the operating instructions.

Then I can set a code with a keycobination which neutralizes the lamp.

And say okay.

The light's fine.

I'm happy with that.

This basically continues the service interval.


Thus it continues for 25k hours.

And then that light won't go out.

That it's on zero.

Then the LED module should be replaced.

We have therefore handled it in such a way that all components are interchangeable.

That means service-friendly.

Come to us for service.

We can do modular maintenance.

That's very important, too.

This is not a disposable product.

Because they are good products of materiality.

So that the customer can enjoy the device for a long time.

You have a good service.

Because longevity is also a contribution to the environment.

Because if I have to throw something away every five minutes, it's not a contribution.

And that if it runs long you know from the car.

This also needs regular maintenance.

So that it simply retains its performance.

And then it is simply cleaned or the LED is replaced, etc.

It also depends on the three-dimensionality.

When such luminaires run at high speed, as with printing machines.

For surveillance.

Such lamps simply run day and night.

You know, paper dusts.

Then it happens that the lamp just gets dusty.

Or the fan could get caught.

And it's all under surveillance.

We're monitoring the LED.

The power supply and also the fan.

If a function should have difficulties, the device switches off immediately.


A handicap.

Then she has to go to service.

It cannot burn or destroy itself.

Now we have looked at the details of the lamps.

What else interests me.

What is the advantage of LED.

There are many other lamps and you have others in your assortment.

What is the advantage of the LED.

The advantage is quite clear.

I have low power consumption and high light yield.

And high longevity.

LED 50K operating hours.

A metal halide lamp is 3k hours.

A halogen lamp up to 75 hours with good care.

So that means I can also create 100 hours with light.

But she's not so durable.

An LED may be subject to shock or vibration.

She just doesn't mind.

That's a big difference when you compare.

75 hours and 50k hours.

That's where the costs of replacing the lamps pay off over time.


Light bulbs are always no problem but you must always have them with you.

And with the luminaire you basically have the all-round carefree package.

I just turn the light on and it works.

And if the light in the back lights up, I just have to go for a quick service.

That's right.

This is already once an important point No.

1 longevity.

What I appreciate is the heat development.

We shoot a lot.

Today is a warm day and still there is little heat from the lamps.

The models also noticed this at a workshop at a trade fair.

They have little problem with the light.

This used to be different with halogen light.

Well, there's no such thing as stage fright back then.

There will always be excitement before the shoot but the warmth is not as it used to be.

Your lamps often go through hours with us.

The case gets warm but you can touch it without any problems.

Now you told me earlier.

You can easily touch the glass surface at the front.

I haven't done that yet.

You can do that.

There is no risk of burns.

The maximum here is 75 to 78 degrees Celsius.

After 2-3 or 5 hours it remains continuous.

Even in the spot area, because that's where the bundling is most intensive.

But there is no risk of burning.

So back in the day.

Can't say no more today, when smokers also light a cigarette in front.

Just before that, and it was on.

You can't do that here anymore.

Smoking is also spoiled, so this is the right way.

That means we have once heat development as a big advantage.

One longevity but there are a few more things.

Of course.

There are also devices that have to work at high speed.

That means we often have the request with high-speed camera manufacturers.

The 100k frames make or 200k frames.

That's where these devices are used.

Automotive industry or airbag tests.

100k frames bendardless, even at 250k frames there was no flickering.

This happens occasionally with normal LEDs.

Annoying when taking pictures.

Your light shines continuously even at very high frequencies.

Because it works with direct current.

This works with 48 Volt direct current with a stable power supply.

This gives us peace of mind in the light.

The last important point for this is that we have the measuring instruments on the table and we want to prove this today.

That I can not only dim the light and it is flicker-free but that it is very colour stable.

And has a high colour rendering value.

So a high CAI value.

That's the most important thing.

I'd like to take you on the lamp in the background.

Let's just show it.

I've got a gauge here.

We can take a measurement.

I'll turn down the lights.

Now, of course, we don't have the perfect situation here.

Because we still have ambient light.

That's true, but you can hit the beam pretty directly.

The performance was now not at maximum, right? Right, it should be about 70%.

Then you read the color temperature up here.

color temperature.

5614 Kelvin So we're 14 Kelvin from the perfect value.

As a hint, only at 100 Kelvin you can see a slight difference.

From 200 Kelvin you can see it.

Exactly 200 Kelvin and up.

And the CRI value in this case is 96.

9 We measured the values in the video earlier.

Unfortunately, I have deleted which we actually wanted to show you on the display.

That's why we just measure again.

30cm distance and this time with the 1000 light.

and Here I have at 20% power 5640 Kelvin and we have a colour rendering a CRI value of 96.

9 So very very precise in colour.

The whole spectrum is involved.

This is important for skin tone reproduction.

For pale colors where you can still see the niances.

That's also the miracle you see every now and then.

Formerly used in printing technology.

Calibrated screens, they were always gray.

There is also a reason for this, so that colour neutrality is also there.

Well, I'm really getting it reconstructed 1 to 1.

I know it from art printing and large format printing.

How important it is to have the right profile for the paper to match exactly the right colour.

That's a lot of work.

And when I have stable light to rely on.

Is that a highlight.

In the past you had to put conversion filters in front of halogen light.

There were always fluctuations with the Kelvin numbers.

Then there was a color cast called mangas sting.

And that was always a highlight, I tell you.

I remember that from another area.

I'll just tell you a minute.

From the field of cine optics.

The masters prime zeiss, for example, are color-matched to each other.

That means if you change the lens, it has the same color look as the other focal length.

Just so it doesn't change in the movie.

Very wicked story, but in the same direction.


You brought a second gauge.

Namely a very special one which was built especially for you.

Yeah, that's right.

We have our devices measured at Gossen.

That's where we do our first tests.

Means what kind of light brightness do we have, etc.

And this is a black lab.

Which you can't readjust so easily yourself.

And there the measurement is made neutral.

That's wonderful, I have the values.

But I need a special measuring device.

The normal measuring devices go up to 150 k Lux.

You get that very quickly then you can make your measurements.

Serious manufacturers say 1m, 2m, 3m, 5m.

That's what I'm getting at.

Exactly this lux number is relatively difficult to understand.

Because every manufacturer gives his own values.

Some from 30cm and some from 1m.

And it's hard to compare.

That's why you brought this.

Then we can show you what such a statement means at all.

25k lux.

At 30cm.

I'll turn on the light sometime.

So I'm gonna set this light to 20.

You see up here, Gossen.

This was calibrated for me days ago.

I also have the measurement protocol.

So how much do we have now.

Now we have here a good 30cm Power is reduced to 20%.

You now have 22k Lux We're at 20% now.

If you find a lamp where it says 30cm.

25K Lux, that's not much.

But it's not really incredibly bright.

So you couldn't really work with a light shaper here anymore.

With the light alone, something works.

We can turn this all up.

I'll take that up to 60%.

60% we have now.

That brings us to 120k lux.

Of course we also do 100%.

Now we are at 100%.

Here we are at 240k lux.

240k lux at 30cm You see a lot of light coming out there.

I know it's gonna be shining bright on the camera now, so I'm going to turn it all down.

And turn it off again.

There's really a lot of light coming out.

In most cases, this is sufficient for photography or filming.

We have not yet illuminated one topic and this is a light system.

It is not like a surface lamp but I have the possibility to work with reflectors and co.

Maybe you could just introduce us to some reflectors.

So there's all sorts of different things.

Similar to a flash unit.

From the spot via normal reflector, flap frame, beauty dish, soft boxes.

The most different program with defuser and without.

Let's slow down and show some of the stuff.

There are so many.

We'll just show you a few.

We simply show the simple application.

We have a universal connection system.

The reflector snaps in quickly and easily via a lever.

I can solve this with a lever.

Let's show that.

Here's the lever.

You use it from above and it snaps it in quickly and easily.

So you don't have to turn or screw in.

It's all very simple.

On the one hand, there are the metal reflectors.

These are now the two little ones.

In the back is the little Beauty dish.

There's a bigger one.

There it is, the great Beauty dish.

And then there are the softboxes.

We've got some there too.

That's the smallest.


They'll be in moderation.

50, 70, 90 or the long box.

We brought one of those with us.

With a large scatter cloth.

The scope of delivery always includes two.

I'll keep that in the picture.

Probably won't fit on it all.

I hope it could still be guessed to some extent.

These difusers on the softboxes are also available for the reflectors.

That means I can put difuser cloths in front of the middle reflectors and the beauty dish.

So I can just get a softer light.


And if I want to set a background accent, I can also use a honeycomb.

For example, there is a set of three honeycombs for the reflectors.

With different sizes.

To set an accent in the background or to provide for a dispersion.

I'm still using the big Octabox.

I'm afraid you can't see them right now.

A whole system so to speak.

Basically everything I have with a studio flash system I can also use with your system.

The good thing is that I always see the result directly.

And the advantage of LEDs is that colour foils can be placed in front of them.

Without having a problem with temperatures.

It is often said that they make a connection for colour films.

Sellotape, before and done.

This is what LED does.

Not with halogen.

With my flap frame, it actually works.

Cause it's got clamps on it.

We'll just show that in the next video.

We can do that because we have other products.

Like halogen or metal halide light, you need these brackets.

There's just more warmth involved.

We come from the strong lighting scene.

That means with 250 or 2500 watts or metal vapour.

High temperatures you don't have with LEDs.

We get from the heat into the cool here.

We get from the heat into the cool here.


Especially when it comes to accessories.


One more lead for LED.

You got to say it like this Thomas, we talked about light shapers, but you said you'd bring me something special.

That's right.

There are simply many customers who already have existing flash systems.

And for this we have now produced various adapters for.

Meaning it's available now.

For example, there is already an adapter from Elinchrom.

Where now all reflectors of Elinchrom can be placed in front of it.

This means that if I have Elinchrome lamps, I can now attach them to your lamps with the adapter.

Right, that's no longer a problem.

Important only for LED luminaires.

Because with halogen lamps, the plastic ring in Elinchrom disappears very quickly.

But in the LED area this is no problem at all.

So I can put everything in front of it.

We still have adapters for softboxes for Profoto, Hensel, multiflash stuff.

For Bones.

There's a lot to do.

You can simply ask us about this.

Or also see on the website.

Everything will be there.

That means if I have a light system I can continue to use my light shapers.

Of course only with the LED lights.

With the LED lights, exactly.

This is unthinking.

Now you brought me something else.

We've talked about this before.

And I'm really looking forward to it.

What I saw at the last fair.

That's right, let me see.

We now have a pyrex bell which can be used on the Fresnel but also on the 650.

It does the following, so you have a higher light distribution.

It is used without tools.

With a twist.

I'm going to turn it on at very low power.

This should be on Spot by now.

I'll put him on Flood.

On Flood.

Then I have full light distribution in the Pyrex.

So you see in front the tip is light but in the middle it is dark.

If you can't see it.

We're about to re-record it for you.

Turn it brighter so you can see the light distribution.

It is fully illuminated.

I have a soft light and you can see the light reflex is already here.

Where he wouldn't be on a Fresnel.

Well, I have a great distribution for the Beatuy dish or the softboxes.

That's what it's mainly designed for.

That means if I have the big softbox whether Octabox or another.

It just gives me better illumination.

Correctly a beautiful homogeneous distribution.

That's just like when I take these supplies.

This also made it difficult for us to find an efficient solution.

But we did it.

I can now put all adapters in front of it.

That means I can use a flap frame.

It can be continuously combined with all things.

Exactly and this will be on the market at the end of June and is very easy to put in front of it.

I think that's great.

Here in front of us stands the big octave and towards the edge it just gets darker.

A minimal hotspot.

And that's exactly what I'm getting away with.

A better light distribution is also possible with the 650 with reflector in front of it.

Very good Now we have another point.

You didn't just bring one or two things, you brought three.

Let me see that.

Exactly, it just often comes the question.

Mobile photography with battery.

So we can't invent the battery ourselves.

We already manufacture the lights in Germany with all components.

Manufacture everything here in Germany and do the service but batteries is not our specialization That's why we thought Where to find a battery you can recommend without hesitation.

Who makes a good impression and above all has a long service life and performance.

We found this.

The Yeti 400 will be available soon.

But you can also buy it in stores However, there are 2 variants.

One is made of lead, which weighs 12 kg.

And this is 6.

3 kg, one lithium-ion battery.

And that's a good thing.

You have a universal connection here.

I have a 12 volt output.

I have USB ports.

I have a display that shows how high the consumption is and how much time is left.

That's what he charges.

That's not a problem.

This means that two 1000 luminaires can be used at full output for 90 minutes.

That's a long time ago.

If you have to sit still, it's been a long time.

I imagine you're at a show or an Abiball and you have to photograph people.

There are many different areas of application.

We have archaeologists or restorers who take it to churches where there is no electricity.

In pyramids or caves.

Different types.

And we want light.

We once had a customer who took pictures in a pyramid.

And he had a generator running outside.


And suddenly it was dark inside.

They took his generator outside.

You've saved it with this.

You can take it with you.

Okay, and this thing has real power.

So there's no end to working well there.

We can also recommend it.

I can see you have a solution for everything.

Not for everything, but when it comes to light, we're making an effort.

I've been taking pictures with the Hedler light for quite some time, but I learned a lot today.

Theme Teflon and so on.

I found it very exciting and I definitely need some of the pyrex bells.

If they finally exist, we'll talk about it again.

I have another announcement.

We did not only shoot this video but a second one.

It'll be about the light shapers and the application.

More practical.

So that you know what you can actually do with the system and what are the possibilities.

If you have any questions, feel free to write them in the comments.

You also have the possibility to call Hedler directly.

That's not a problem.

You can contact us by email or via the website.

Also by telephone.

Or you can contact your local dealer.

There are very competent people there who can also help you.

But also contact us.

That's not a problem.

That's a good tip.

So you have a direct contact person, including the local dealer.

It remains for me to say, thank you so much for being here.

It was really fun.

Me too.

And have fun with your photos.


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