View Single Post
  #12   Report Post  
Posted to uk.d-i-y
george (dicegeorge) george (dicegeorge) is offline
external usenet poster
 
Posts: 287
Default Illuminated switch to show that cloakroom light and fan is stillon




Cnnected from L to E a neon on a 220k resistor will add in the region
of 0.7mA. An ultrabright LED can be run off much less than 1mA with
decent light output. And if you run it from a CR dropper the power
diss would be even tinier. The LED would need a rectifier of course.


NT

Wouldnt this add to RCD trip current?

Why not wire it between L and N?

And how does the switchlite work?
http://www.tlc-direct.co.uk/Products/DT2503A.html
it glows when not switched on,
but has no Neutral or Earth connection,
is it like my neon mains testing screwdriver?

[g]