Wich LEDs are these?
- Thread starter Neondiod
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Marduke
Flashaholic
Luxeon 3's by the looks of it.
R@ndom
Enlightened
Even the Audi R8 uses lux's.
Are you serious? You mean the old school stuff like in the bus above?
R@ndom
Enlightened
Yep. Lux 3's are only about 3 years old really...
correct,
but they make just 1/2 of the light - and thus double the heat - than acutal technology led.
Both arguments should now, 2 years after the "Cree revolution", lead the makers to use the newer led.
... at least there is pretty nothing to consider for doing that "emitter swap", so no reason not to use them (or, better, no real reason to use the old Luxes)
but they make just 1/2 of the light - and thus double the heat - than acutal technology led.
Both arguments should now, 2 years after the "Cree revolution", lead the makers to use the newer led.
... at least there is pretty nothing to consider for doing that "emitter swap", so no reason not to use them (or, better, no real reason to use the old Luxes)
3 year old LED tech is like comparing a 3 years old computer to a new one. The old one is really obsolete.
Before Cree, Seoul, and other high power LEDs came along LumiLEDs/Philips were resting on their laurels. It took Cree to light the fire under them to make them move, and even now they drag their feet.
Don't get me wrong, I do like the new K2 and the Rebels but Philips is much slower when it comes to new tech. Where's the Lux V replacement??
With the advent of the newer Cree XP-G it looks like the gap will be even higher. The Cree has tighter color binning IMO.
The last Lux III I had was a UYOK and the tint was blue. I payed about close to $30 for that LED.:shakehead
Hello!
I don't exactly know how old this bus is, but it looked fairly new and as it was showed by Volvo at the Volvo Ocean Race stopover in june, it's probably brand new.
I think Volvo have put reliability before maximum brigtness efficency in this case. The LUX III have being around for a longer time and are more proven to stand up for the task. After all the efficency should be far better then an incandescent.
How are you able to see the diff. between a Lux I and a Lux III from this photo?
BR
I don't exactly know how old this bus is, but it looked fairly new and as it was showed by Volvo at the Volvo Ocean Race stopover in june, it's probably brand new.
I think Volvo have put reliability before maximum brigtness efficency in this case. The LUX III have being around for a longer time and are more proven to stand up for the task. After all the efficency should be far better then an incandescent.
How are you able to see the diff. between a Lux I and a Lux III from this photo?
BR
"reliability before maximum brightness"
joke, or what?
we in here take those led, cram then im something that is way below what car makers product care is, and both Lux and Cree, as well as Seoul btw., have survived.
There is pretty no difference in reliability in all those led, using them is simply - :thinking: - have no word that fits ...
.. something like stone age technology (in led terms) to show the makers high tech appeal
again, in short: considerably more heat production, half the light, both at same power consumed.
... I would really like to have some tech explain the reason to use them!
And my experience also was, that the binning and especially the tint "reliability" of Luxeon was more than a joke and very inconsistent.
joke, or what?
we in here take those led, cram then im something that is way below what car makers product care is, and both Lux and Cree, as well as Seoul btw., have survived.
There is pretty no difference in reliability in all those led, using them is simply - :thinking: - have no word that fits ...
.. something like stone age technology (in led terms) to show the makers high tech appeal
again, in short: considerably more heat production, half the light, both at same power consumed.
... I would really like to have some tech explain the reason to use them!
And my experience also was, that the binning and especially the tint "reliability" of Luxeon was more than a joke and very inconsistent.
"reliability before maximum brightness"
joke, or what?
we in here take those led, cram then im something that is way below what car makers product care is, and both Lux and Cree, as well as Seoul btw., have survived.
There is pretty no difference in reliability in all those led, using them is simply - :thinking: - have no word that fits ...
.. something like stone age technology (in led terms) to show the makers high tech appeal
again, in short: considerably more heat production, half the light, both at same power consumed.
... I would really like to have some tech explain the reason to use them!
Not a joke but "reliability" was a bad choosen word. What I ment was more like; 'the LUXIII endurance has being prooved in the feild for a longer time than most other power LEDs'. The effeciency isn't importent in this case but the endurance is important. That's why I think the have choosen something that is well tested in real life. But I have no idea, it just seams reasonable.
With that said, newer generation LEDs should indeed last as long time and probably even longer since they can be driven lower for the same light output and have better termal performance. But the thing here is that it's not prooved yet since they haven't being on the market for that long.
If I was designing a LED light lamp for a bus or a truck, it should be of highest importans that it last a long time since theese vehicles is running almost constanly. So lets say I can get the Rebel ES (wich is way more effective and should on the paper last a lot longer than a LUXIII with the same light output) I would still have choosen LUXIII because there is no proof that the Rebel ES has the endurance of LUXIII in real life situation.
Cars/trucks have loooooooooong development cycles.
The general rule of thumb when I worked on in-car audio/video/nav systems was the OEM technology in new cars (on the showroom floor) was at least four to five years old.
The general rule of thumb when I worked on in-car audio/video/nav systems was the OEM technology in new cars (on the showroom floor) was at least four to five years old.
Illum
Flashaholic
Definitely Luxeon...all symmetrical and such:twothumbs
Not really, I have programs that will run fine on my 98 but will crash on XP...:thinking:
Not really, I have programs that will run fine on my 98 but will crash on XP...:thinking:
