Re: [mk2] elec - lightbulbs & led's

[SailingFC@aol.com]

In a message dated 3/10/00 12:56:13 PM Pacific Standard Time, 
foxxinabox@core.com writes:

<< are led's (light emitting diodes) variable current or
 simply on/off? knowing this would be incredibly valuable to me. thanx. >>

LED's are designed to operate at approximately 0.017 amps.  With that in 
mind, using the basic electricity formula of V=IR, where V=12 volts & I=0.017 
amps, solving for R gives 680 ohms.  So if you have a LED and want to use it 
with 12 volts, you must put a 680 ohm resistor on it before you power it up.  
So to answer your question, it is not a variable current device it's an 
"on/off" device.

-Dick-
78 Scirocco
Original Owner
<A HREF="http://member.aol.com/sailingfc/">http://member.aol.com/sailingfc/</A
>

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