The Multicomp OVL 5mm green LED below is impressive in terms of colour (the=
y=20
call it "True Green") and brightness. Have used them on a couple of project=
s now,=20
narrow viewing angle, visible outdoors in full daylight, visible hundreds o=
f metres at=20
night (IIRC, I ran them at approx 15mA).

http://nz.element14.com/multicomp/ovl-5524/led-5mm-green-13cd-520nm/dp/1716=
7
04?Ntt=3D1716704

On 30 Sep 2013 at 15:26, James Holland wrote:

> I'm looking to select some green LEDs for a clock that will be used
> outdoors. Looking at the catalogues I can get various wavelengths
> and the highest light output appears to be from those with a more
> yellow output, around four times that of a pure green LED. The clock
> has a green filter which I would guess is closer to a pure green. Am
> I likely to be better off with a lower power pure green LED or a
> higher power yellow/green LED. Unfortunately I don't have any real
> data, the display was removed from a clock so the existing LEDs are
> an unknown quantity as is the filtering capability of the filter so
> I'm really just hoping for general information based on other's
> experiences.=20
>=20
> Regards
>=20
> James
>  		 	   		 =20
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>=20



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