LED color

[nethajireddy]

Hi,
I have one doubt regarding LED that is how same led changes its color green to orange like that, best example is Monoitor LED.

[JosAH]

Hi,
I have one doubt regarding LED that is how same led changes its color green to orange like that, best example is Monoitor LED.

Those 'bi-colored leds' are two leds essentially where only one at the time emits
light; you can turn them into tri-colored leds by switching their states alternately
very quickly but you'll need a bit of additional circuitry then.

kind regards,

Jos

[YarrOfDoom]

But why does the color change then if you switch the poles?

[JosAH]

But why does the color change then if you switch the poles?

They're diodes remember? They're mounted in opposite direction so at most one
of them conducts; the other blocks the current and vice versa.

kind regards,

Jos

[debasisdas]

They're diodes remember? They're mounted in opposite direction so at most one
of them conducts; the other blocks the current and vice versa.

kind regards,

Jos

as usual , i again learned something new today.

[YarrOfDoom]

They're diodes remember? They're mounted in opposite direction so at most one
of them conducts; the other blocks the current and vice versa.

kind regards,

Jos

Right, forgot about that. Only saw it a couple of month ago in physics class though.