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saliery

Led failure

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This is entirely normal for LEDs that have been on for long periods of time, and is the number 1 reason airports dont use them for runway lights.

What you are most likely seeing is LED Color Shift. The only thing that is a bit odd is your printer is pretty new. How many hours does it have on it?

This should help explain if you would like to read a bit more into it: http://www.ies.org/lda/HotTopics/LED/20.cfm

 

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This is entirely normal for LEDs that have been on for long periods of time, and is the number 1 reason airports dont use them for runway lights.

What you are most likely seeing is LED Color Shift. The only thing that is a bit odd is your printer is pretty new. How many hours does it have on it?

This should help explain if you would like to read a bit more into it: http://www.ies.org/lda/HotTopics/LED/20.cfm

 

LED have more than 10000 hrs work time ...

 

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LED have more than 10000 hrs work time ...

 

Work time is not what we are talking about. They might "Work" but they color shift over time and that time is much shorter than the life span of the LED. Its a very well known issue with LEDs.

 

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Yes, my newer UM2 looks just ike the one on the right

Led Dim 2

 

and @ tottenham12712 (damn what a user name :) ) , I understand the color shift over time... I'm talking about right out of the box!

 

The newer UM2 (at least the newer one I have) has a completely differnt LED strip. The old LED strip had the diodes exposed, the new strips have the LED's encase in a resin shield.

 

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Same here.

I just hate those new LED lights shipped with new UM2's

I would like to replace them with old ones which are proper white in colour and very bright !

IMG 0469

 

Old one on the left hand side

 

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and @ tottenham12712 (damn what a user name :) ) , I understand the color shift over time... I'm talking about right out of the box!

 

The newer UM2 (at least the newer one I have) has a completely differnt LED strip. The old LED strip had the diodes exposed, the new strips have the LED's encase in a resin shield.

 

:p

Totally different issue if its right out of the box. Here is my guess, they were having stocking issues for awhile. Its possible they ran out of a particular brand or "white" color LED and had to just another to keep them shipping. That would be my guess.

 

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Hello everyone I am in trouble, I am using the UM3 extended I worked with this well in the last 3 months but today a problem occurred and one of the led strips stopped working, someone can help me thank you very much

5a33401ee2330_IMG_29421.thumb.JPG.7346d1846d9ad419d76dfdc4ab5b53b3.JPG

5a33401ee2330_IMG_29421.thumb.JPG.7346d1846d9ad419d76dfdc4ab5b53b3.JPG

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