LED

[Grizz]

I finally stuffed my tube screamer into an enclosure and I didn't have a red LED for the on/off indicator so I used a green one will that affect the sound or tone of the FX?

Grizz

[Faber]

It shouldn't, no.  Since the green LED isn't in the signal path, it should have no effect on the signal.

[brett]

Personally, I think it's weird that we use red LEDs to indicate "on". 
To me, green says "go", and red says "not working properly".

[Timebutt]

Personally I think it's weird to use normal intensity color LED's that aren't even blue!
Superbright blue LED's add instant mojo

[jalien21]

yeah, man, those super bright blues are unmatched. such a good led

[BubbaKahuna]

From my experience, blue high intensity LEDs are about the only thing you can see in full direct summer sunlight.
Red ones in full sun? Forget it, might as well not have an LED at all.
They refract sunlight even when they're off and look pretty much the same powered or not.

[ayayay!]

From my experience, blue high intensity LEDs are about the only thing you can see in full direct summer sunlight

+1 on that

I did an outdoor gig last summer and thought, "Man, I oughta spend 30 minutes now and do these last few pedals with blue LEDs."  I'm SO glad I did, as the stage had no cover other than the lighting truss.  Sunny skies above! 

Now if only I could have seen my Planet Waves pedal tuner in all of that.  Grrrrr.  I couldn't see a thing!  I'm considering a TU-12 just so I can see, but I prefer pedal tuners. 

[kurtlives]

I have always used superbright blue LEDS, mainly cause they look so cool.

Its good to know that they work well outside though.

[jefe]

I personally can't stand super-bright LEDs. I'm just a bedroom & studio gigger, and I have no plans to play outdoors. The first time I used a super bright LED, I realized that it was blinding me everytime I bent over to tweak a knob, to the point where I couldn't actually see the controls on the pedal. I had to change the dropdown resistor on that one. I also don't like LED's that are too directional, like a flashlight beam. I like the light to spread out a bit, so I can see if the LED is lit from an angle, like when I'm sitting a few feet away.

[jayp5150]

I've been using violet ones, and I really dig 'em (NOT UV ones, just violet...).

I usually match the LED to the paint, if I can. That's just me being OCD, I guess. 

[sengo]

I've been using violet ones, and I really dig 'em (NOT UV ones, just violet...).

I have a few of them which I use. Very pretty 

[R.G.]

Personally, I think it's weird that we use red LEDs to indicate "on". 
To me, green says "go", and red says "not working properly".

That's a historical item. The first visible LEDs were red; that was the ONLY color they came in for several years. It was only later that you got Yellow, then orange. Green caused a minor stir, and blue only became available with the production of CREE's silicon carbide LEDs. For quite a while saying "red LED" was redundant.

If it was an LED, it was red. And people got used to red light being "on", darkness being "off". That kinda hung on, I think. People got used to point-source lights being red.

I've heard the case made that since the human eye is much more sensitive to green than red, green would be a better warning color than red. Therefore, we should go on red and stop on green. It's that silly historical thing again I think. Red light = fire = danger was an association made well before there was printed language.