On Fri, 29 Jan 2010, Trevor White wrote:
> Hi.
>
> I have a feeling its because professional production have big 300mm x
> 400mm size panels and the number of LEDs in one unit just makes it too
> large. It would have like 400 LEDs per side. Where as at present they
> just stick a few tubes in which can be replaced easily.
I suspect too that light from a tube may be easier to diffuse. Another
thing may be that there are fewer parts to go bad. Looking around town I
see lots of LED traffic lights in various stages of partial failure.
--
David Griffith
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