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This video is all about LED T8 retrofit tubes.
We test and compare four LEDs from well-known manufacturers to find out which of these lamps can truly replace a 58 watt T8 fluorescent lamp.
And now it starts! That's it: the well-known T8 fluorescent tube, and we want to replace it with a modern LED lamp equivalent.
Equivalent means for us: We put the main focus on the light that arrives at the Bottom.
Because that's what you expect after a conversion: At least as much light as before.
But why actually convert to LED? There are many reasons for converting your free-radiating lamp to an LED lamp: LED lamps are more economical, more environmentally friendly and durable than the old fluorescent tubes.
A big advantage of LED lamps: They have in contrast to the fluorescent tubes no switch-on delay.
After switching on, the fluorescent tubes always need a certain amount of time until they are started up and fully charged.
The LED lamps are 100% immediately after being switched on.
This is especially advantageous when controlling via motion sensors.
What awaits you in the following: Let's take a look first We look at the selected different LED tubes a little more closely and compare their technical data and then of course we try them out: In a small practical experiment in our test garage, we compare the light intensities of the different LED tubes with each other and with a classic 58 watt fluorescent tube.
and in the end we can hopefully draw a conclusion.
But now for comparison.
Then let's take a look at the participating LED tubes.
In the race we send the following 8 LED lamps: The OSRAM LEDVANCE SUBSTITube ultra Output, the PHILIPS master LED tube T8 universal, the EIKO T8 LED 30W and finnaly the LEDORA T8 LED Excellence Plus.
So we have selected lamps that promise a replacement for the classic 58 watt T8 fluorescent lamp.
They all have a color rendering value of CRI> 80 They all have a color rendering value of CRI> 80.
Let´s start with the OSRAM SUBSTITube Ultra Output.
The base is longer compared to the classic fluorescent lamp.
Also, the base is slightly thicker than the pipe itself.
If your free-radiating light has a waterproof lining for the T8 tube, then check if this fits in the right place.
In addition, the base is rotatable, so you can make the light direction more flexible, for example, in a wall mounting.
As a small guide here are on the pedestal degrees.
In the fluorescent tube, a rotatable base was not necessary because it had a beam angle of 360 °, So all around radiated light.
The OSRAM SUBSTITUBE Ultra Output here has a beam angle of 210 °.
Let's get to the technical data.
For this we have prepared a small table which will gradually fill with life.
The OSRAM T8 LED lamp brings 3600 lumens.
The classic 58 watt fluorescent lamp usually has a capacity of 5, 000 lumens.
The OSRAM LED tube has a power consumption of 22.
The fluorescent tube needs 58 watts.
Of course we measured that: Here the OSRAM LED-Röhre.
The given value is ok.
And here the fluorescent tube: Here, significantly more power is needed than is specified for the lamp.
This difference is due to the ballast of the lamp, ie the built-in VVG or KVG.
The energy efficiency of the OSRAM LED lamp is given as 160 lumens per watt.
The fluorescent tube can only boast 70 lumens per watt.
We already mentioned the distance angle and the rotatable base.
Lifetime is given as 60, 000 hours.
A fluorescent lamp usually lasts 20, 000 hours.
Let us now turn to the PHILIPS MASTER LED T8 universal.
First of all, the supplied replacement starter is mounted on the base.
Of course, the other LED tubes in this video also bring along an exchange starter.
The base itself is very long in the PHILIPS and also here socket and tube are different slim, So you should also check here if any existing laminations fit and hold.
The base is also rotatable with this LED tube, which makes sense with its beam angle of 160 degrees.
To the technical data: the PHILIPS brings 3700 lumens.
It has a power consumption of 24 watts.
We have also measured this and the information is okay Its energy efficiency is 154 lumens per watt, the beam angle is as stated at 160 ° and also its base is rotatable.
The lifetime is given as 50, 000 hours.
Next up is the EIKO T8 led.
Its base is very similar to that of the T8 tube, and the base and tube are equally slim, so attaching the waterproof lamination of the old fluorescent tubes is usually easily done.
The sockets are not rotatable here.
but that's not so bad, because this LED tube has a beam angle of 220 °.
The EIKO also brings 3700 lumens.
It is specified with a power of 30 watts and we have also measured this.
This information is also correct.
It has a slightly lower efficiency of 123 lumens per watt.
Their beam angle is 220 ° and the base is not rotatable.
The life of the LED T8 tube is also given as 50, 000 hours.
Last but not least, we take the LEDORA T8 excellence plus.
The socket is relatively short compared to OSRAM and PHILIPS, but at this point it is a bit thicker than the tube itself.
Again, the base is rotatable because the beam angle is 120 °.
The Ledora T8 LED brings a whopping 5386 lumens.
For this it requires 33 watts, and this information is fine.
The LEDORA LED has an energy efficiency of 163 lumens per watt.
As mentioned, the beam angle is 120 ° and the socket is also rotatable.
Here the lifetime is given as 50, 000 hours.
So! Enough of the numbers and data, it's time to let pictures speak.
The moment of truth has come and we will throw the LED lamps one after the other to the ceiling.
How much light does which LED lamp bring and how does it look compared to the conventional 58 Watt fluorescent tube? For this we now go over to our test garage.
We have the following test setup here:We will mount the respective lamp in this garage up here.
We will record the whole thing with a camera from there.
We will then compare the pictures with each other.
It is important, of course, that the camera settings are the same for each shot.
That means we fix the camera exposure and shutter speed.
So, different brightnesses are not caused by the camera! Of course, our studio headlamps are not lit up when shooting, so all the light in this garage comes exclusively from the particular lamp installed.
Then we measure with our lux meter once directly under the lamp and then here in the edge area the light intensity of the respective lamp.
Since the positions of the Lux meter are identical to the particular luminaire, you can compare the measured values directly with each.
Then let's go: First, our reference lamp has its appearance: A 58 Watt fluorescent lamp.
After all, we are going out of this too.
Directly below it shows that Lux meter about 285 lux.
In the border area we measure about 145 lux.
Let us now turn to the OSRAM lamp.
And here in the comparison.
It seems to be darker than the fluorescent tube.
The lux meter directly below actually shows only about 206 lux.
the edge area comes to just under 100 lux.
Next we throw the PHILIPS on the ceiling.
First of all, here once the fluorescent lamp and now the PHILIPS LED Tube.
And here in the comparison.
Here shows the lux meter directly below 293 lux.
So even more than the fluorescent lamp.
In the border area, however, there are only about 133 lux.
This is due to the beam angle of the PHILIPS lamp of 160 °, therefore, the PHILIPS LED in the picture compared to the overall impression forth, despite the high measurement result, a little darker However, the light is simply brought downwards thanks to the beam angle, where we want it to be.
The scattered light on the ceiling and the upper walls as with the fluorescent tube with its 360 ° is thus avoided.
And now the EIKO is at the start.
Again, first as a reference the fluorescent lamp.
And here the EIKO LED lamp.
And here in the comparison.
It brings it directly under the light to about 252 lux.
It is therefore not quite as bright as the original fluorescent lamp, but much brighter than the OSRAM lamp.
At the edge, the EIKO is comparable to the PHILIPS with approx.
122 lux, which is due to the beam angle of 220 °.
Last but not least the LEDORA: It would have to be much brighter than the others with a stated 5386 lumens.
Again, for comparison, the classic 58 watt fluorescent tube.
And here the LEDORA.
And here in the comparison.
The lux meter directly under the LEDORA actually shows a whopping 396 lux.
In the border area we still have about 162 lux.
clearly visible is the beam angle of 120° of the clear glass version we use.
The light comes so very directed directly down to where it belongs.
The ceiling and upper wall area get so little light.
But it is significantly lighter under the lamp than with the old fluorescent tube.
Let's come to a not unimportant point: the price.
The cheapest of the lamps presented here is the EIKO LED T8 lamp, the OSRAM LED T8 lamp costs a bit more.
A little more the PHILIPS LED T8 tube, and most expensive is the LEDORA LED T8 lamp shown here.
We were looking for the best replacement for your 58 Watt T8 fluorescent lamp and wanted to find out which of the LED T8 retrofit solutions would bring just as much light.
We tested four lamps and got four results.
Based on our measurements, it is the PHILIPS LED lamp that meets these requirements.
Unfortunately, the tested OSRAM LED tube does not reach the luminous intensity of the fluorescent lamp.
The clear price-performance winner, however, is the EIKO LED T8 lamp.
It is only insignificantly darker than the original fluorescent lamp, but is the cheapest of the lamps presented here.
However, it has a lower energy efficiency than the PHILIPS LED lamp and is therefore not so economical.
At higher operating hours, so in the long run, the slightly more expensive PHILIPS is more energy efficient.
The LEDORA shoots far beyond the target: It brings most of the tested lamps on the ground most light.
But it is also the most expensive of the lamps tested here.
It even provides considerably more light than the classic fluorescent lamp.
So it is used when you really need a lot of light, e.
at high mounting height or at workstations.
Incidentally, unlike the other lamps featured here, the LEDORA is available in different beam angles.
Also, there are different versions of frosted glass in addition to the clear glass version shown here.
In addition, the LEDORA is also available with a color rendering value of CRI> 90, which is suitable for paint shops, for example.
n other words, the LEDORA LED lamp is, so to speak, the premium lamp among the LED T8 retrofit tubes and is suitable if you want more light after the conversion than you previously had with the 58 watt T8 lamp.
And if you have any further questions about T8 LED Retrofit or general questions about professional lighting, you are always welcome to contact us by phone, chat or live presentation.
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