Re: [Amc-list] Blue LED tamed

[Tom Jennings <tomj@xxxxxxx>]

On Sun, 4 Mar 2007, Widiker, John D wrote:

> This Blue LED is not a tiny cute one, it's a freaking laser, it's burn
> your retinas bright, 200 did absolutely nothing at all. The same one he
> has we used 15K on and it was tolerable and hasn't had an issue in 3
> weeks of use.

Maybe you mean 150 ohms?

But but... 15K ohms (15,000) means 100 times LESS current than
180 ohms... any LED ever made since 1970, with 15,000 ohms on
12 volts, you won't be able to see it.

 	      E
        I =  -----
               R

I is current. E= 12. Bigger resistor R, less current. Less
current, less power, less brightness.

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