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Led's have red color in them too ? and wiring issue

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Old 12-11-2009, 05:40 AM
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Default Led's have red color in them too ? and wiring issue

hey,

i got one led's of audi a4 from a nearby junkyard.

there was a 4 pin connector in them i soldered 4wires to them and tried to connect it to a dc12v supply ,this is how the led's glow







firstly,now need to know how to connect it to get in working in white color.


secondly,did anyone know that leds can glow in red color too or is it just the warning color
Old 12-11-2009, 07:28 AM
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Is that for the front? Cause the front does not have red in them, afaik. However, the 4 wires are indicave of a multi-coloured LED system. Basically, 1 Ground and 3 each for the RGB. Try each one and see what colours they produce. If all else fails, try connecting all of them at once to the same source.

They may need some sort of driver circuit to get to display white, but normally RGB isn't used to create white by itself, it'll drive you nuts everytime you blink or move your line of sight.
Old 12-11-2009, 09:15 AM
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yes these are the DRL's led only

i will click the pics tomorrow and post it

i tried all the possible ways i could do

secondly ,they have a lens type cover on led so i broke one after that to check it and i found the red part was glowing from the sideways not from the middle part of the led's

There was no other color i found glowing except this

if anyone knows the wiring diagram ,please post it or describe it
Old 12-11-2009, 11:55 PM
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There are no white LED's. They are made to look white by using either tri-luminous devices that mix red, green, and blue to yield white. There is another technology, especially used in automotive lighting that uses a red LED to excite a phosphor that emits white light.

It looks like you have peeled the LED's from the housing. That is why they are red. No phosphor.

Good Luck.
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