Re: LED Dimming

["Brian Milton" <bmilton@xxxxxxxxxxx>]

--- In ukha_d@xxxxxxx, "David Buckley" <db@e...> wrote:
>
> --- In ukha_d@xxxxxxx, "Brian Milton" <bmilton@b...>
wrote:
> > Sorry about the OT.
>
> Question is not OT.
>
> > But I need to know if LED lights can be dimmed?  And if so do
> > they need a specific transformer to do it or will my digidim do
it.
>
> To dim LEDs properly requires a PWM controller.  LED dimming is
pretty
> tied up in patents and patent litigation, so these aren't exactly in
> over-supply.
>
> But, if you have LEDs running off an unregulated supply with a
proper
> (as in magnetic, not electronic) transformer, such as an unregulated
> wallwart PSU, and you plug it in across an incandescent load, it
does
> work.  Without a parallel incandescent load its not likely to work
at
> all well.

I have been doing a bit of searching around myself and yes it is hard
to find anything.  The people in Helvar said that there are some led's
that have mains dimmable transformers and they would work with the
Digidim but I can't find anything. Has anyone heard of these type of
dimmable Leds?