No, there are not any LEDs with built-in current sources.  There may  
be some with current limiters.   I googled and did not find any.
Gus


> On Jul 4, 2009, at 11:47 PM, Mark Rages wrote:
>
>>
>
> Are there any with a built-in current source?
>
> Regards,
> Mark
> markrages@gmail
> -- 
> Mark Rages, Engineer
> Midwest Telecine LLC
> markrages@midwesttelecine.com
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