[dorkbotnyc-blabber] LED question

[Eric Singer]

If you're running from a 5v source, just put a ~390 ohm resistor in 
series. They'll be fine. You can reduce that value, to a certain 
extent, to increase the led brightness. As long as you're not going 
much past visually max brightness, you're usually fine.

At 2:19 PM -0500 1/18/07, Jon Lorusso wrote:
>Hi,
>
>I just bought a pack of "assorted LEDs". I was told they range from 
>10-20mA and 2-3V.
>However, there's no way to tell (from the packaging itself) how each 
>individual LED is rated.
>Does anyone know how to determine the actual rating of each LED ? If 
>I put 20 mA through
>an LED rated at 10 mA will it burn out quickly?
>
>Thanks,
>
>--jon
>
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