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prakhonchai nick

Electric Light Problem

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I have just changed 2 60W light bulbs for 5W LED bulbs.

 

Having screwed in the first one, I checked and all OK. When I removed the 2nd 60W bulb and put in the 2nd 5W LED both bulbs "glowed" even though switched off. Help and advice required please.

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It's because your 'neutral' has volts flowing through it.

LEDs don't need much to work.

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It would seem that the switch is switching neutral /negative instead of the live/positive....

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Yeah, I'd go with you having a switched neutral too.

 

If you can't re-wire then get a fan motor capacitor (about 1.8uF) and put it across one of the light fittings, your glow should magically disappear.

 

IMPORTANT NOTE You must use a 250V AC rated capacitor, fan motor capacitors are of the right type and readily available.

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Are these normal 5W LED or the Emergency Light type (with built in battery back up during power failure)?  Have had strange things happen using them in a circuit (ordered by mistake as seem to sell as cheap or cheaper than normal lamps).

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4 minutes ago, lopburi3 said:

Are these normal 5W LED or the Emergency Light type (with built in battery back up during power failure)?  Have had strange things happen using them in a circuit (ordered by mistake as seem to sell as cheap or cheaper than normal lamps).

Just the normal ones. I think what Crossy and others have said is that the problem is a crossed neutral. Will see how accessible the wiring is, and hopefully correct it.

 

Thanks to all for your input.

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I had a notourious problem with FL lamps glowing, even when switched off. I was sure I switched "live" Fiinally it turned out the neutral wire was to thin to carry the load from all what was connected to it.

 

I solved by switching a contacter, and put "L" and "N" through the contacts. The result is, you here a nice "clack" when switch on, or off the light. But glowing is solved.

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