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Re: [OT] LED Dimming
- Subject: Re: [OT] LED Dimming
- From: "David Buckley" <db@xxxxxxxxxxx>
- Date: Fri, 25 Mar 2005 11:18:50 -0000
--- 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.
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