Hello,

First of all i'm not an expert, i am not even close.
I had a defective backlight led (color green) in the vent knob of my car. I have no idea of the specs of the defective led.
So, i bought this led

with these specs

I soldered the new led and it lights up fine. The problem is that the led color from the center button changed from orange to red.

Does anyone has any clue why that might be?
Thank's again.

 

Its possible they share the same voltage or series resistor, and the green is pulling the voltage down, making the orange led glow red.

 

Ok i see. So the led has internal resistance. Maybe i can use another led with more amperes with the same voltage.

 

Welcome to AAC!

Maybe i can use another led with more amperes with the same voltage.

It would be better if you traced the circuit so you don't need to guess what's going on and what will fix it...

The emitted wavelength of an LED depends on, among other things, current. At higher current density, it will shift to shorter wavelengths. The opposite would be true with less current.

 

Hello,

First of all i'm not an expert, i am not even close.
I had a defective backlight led (color green) in the vent knob of my car. I have no idea of the specs of the defective led.
So, i bought this led
View attachment 123705
with these specs
View attachment 123706
I soldered the new led and it lights up fine. The problem is that the led color from the center button changed from orange to red.
View attachment 123707
Does anyone has any clue why that might be?
Thank's again.

Once I was messing about with a blocking oscillator and red LED which turned orange when I turned the wick up - but I've never seen the other way round.

Any possibility a dual die LED is somehow involved? - Red & green die in the same package can produce yellow, or orange if you shift the balance of current in the 2 dies. If its a red/green LED; a drop in voltage could cut off the green slightly before the red.

 

LEDs chang color many times when they have too much current

 

If too much current is allowed to flow through a RED LED, it will look orange.

Also, photos of bright LEDs (red) can saturate a camera and appear orange in the photo.

 

LEDs chang color many times when they have too much current

Usually ending up with black......................