How the psu is designed. obviously if the design attempts to keep the light
working no matter how mangled the waveform or how variable the voltage, its
not going to dim very well!
Brian

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The Sofa of Brian Gaff...

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"rick" wrote in message
...
Been fitting new kitchen .... one of the last job was fitting 3 new
hanging lights. in and working (well sort of)

Wife had bought LED 'filament' decorative bulbs ...... they work fine on
full power or can be dimmed ... but not turned off .....
Dimmer is type you press button it dims to off .... with theses bulbs it
dims to off and then back to low.

First off thought dimmer was faulty - but put in some standard GLS bulbs
and it works fine.

After searching specs it does say non-dimmable (but not in advert or on
packaging)

I'm going to have to find dimmable LED .............. but what makes an
LED bulb dimmable or not ?