Have a look at a datasheet on one. They are not broad spectrum. I believe
they generally have a blue LED with phosphors excited by the blue to get
other colors.

Harold


> PICers - just curious about "White LEDs" that you see in the catalogues.
> Are
> they truly broad spectrum white-light, as in daylight or from a fluoro
> tube? Or
> is it some trick they do by combining narrow band R,G,B emissions?
> Thanks - Debbie :)
>

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