Re: LED's

["Rich" <Never@xxxxxxx>]

Thats ok we already did.

"Robertm" <Respond@xxxxxxxxxxxxx> wrote in message
news:dkoihv$8g0a$1@xxxxxxxxxxxxxxxxxxxx
>
> "Rich" <Never@xxxxxxx> wrote in message
> news:k4ydndNrJZY0W_LenZ2dnUVZ_tGdnZ2d@xxxxxxxxxxxxxx
> >I have an assorted pack of led's.  No numbers lots of colors. How do I
tell
> > what resister to add in the circuit at 12 DC
> >
>
> Many LED's drop 1.2 volts across them so you have 12 minus 1.2 = 10.8
Volts.
> Assuming a current of 15 ma, you might try a 720 Ohm resistor. Not knowing
> the exact LED's you have, no one can say exactly. If you want to be on the
> safer side, start with a 1K resistor. Somewhere between 10 and 20 ma
should
> provide sufficient brightness. Disclaimer: If you burn them up, I'm not
> responsible.
>
> Bob
>
>