>
>
> >I knew efficiency and outdoor visibility would be a challenge, I was
> >thinking visibility first and as much efficiency as was practical with
that
> >requirement.
>
> It will probably boil down to money. You can do pretty well for 0.50-1.00
> US per LED in that quantity, in various colors, but you might not like
the
> cost.
>
> Best regards,
>
> Spehro Pefhany

Hmmm.... How many MCD does it need to be visible outdoors?

The problem I have is historically I've always used LEDs from surplus
sources, where most of the manufacturers specs are unavailable. (if you
even know who the manufacturer is :o) So I'm not entirely sure what one
will be like based on numbers in a book.

At the moment I'm thinking the ones from Lumex, Digikey numbers 67-1116-ND,
67-1097-ND, 67-1105-ND, and 67-1098-ND 20Mcd, and 60 degree angle.

If I had more time I'd order samples of all the likely candidates and
evaluate them, but I need to be soldering them down by Monday.

Thanks
-Denny

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