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Mike Barnes Mike Barnes is offline
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Default Illuminated switch to show that cloakroom light and fan is still on

In uk.d-i-y, John Rumm wrote:
Mike Barnes wrote:
In uk.d-i-y, NT wrote:
On Sep 5, 11:59 pm, "Dave Plowman (News)"
wrote:
In article
,
NT wrote:

The LED would need a rectifier of course.
You just parallel a reverse connected diode to the LED for AC. Plus a
suitable current limiting resistor, of course.
you can, but the resulting flicker is terrible. Worth going for 100Hz
flicker imho. That also gets you half the capacitor size.

How about a pair of LEDs, reversed and paralleled, and mounted very
close to each other (perhaps behind the same diffuser)?


That might solve the flicker issue - but TBH, 50Hz flicker is not going
to be an issue for this application.


People do complain about 50Hz flicker. Not me, but some people.

And there must be a reason why you can't connect the diode pair in
series with the load, otherwise it would have been suggested by now.
What's the reason?


What a pair of LEDs? The have a max forward voltage of *significantly*
less than mains, and a max power handling down in the mW range.


I don't understand the relevance of those parameters to the application.
I see a single-LED series circuit being discussed elsewhere in this
thread, which suggests that it's not impossible.

--
Mike Barnes