I have 3 downlights recessed into the landing ceiling. I am on my second 
dimmer (60 - 400W). The bulbs fitted are dimmable (according to the box). 
Presumably dimmable means they'll continue to work off a lower voltage? Why 
would 'non dimmable' bulbs affect the dimmer switch? If my bulbs are 
dimmable, what might have happened to the dimmer switch?

Jez

"A"  wrote in message
news:4336bbf3$0$3556$da0feed9@news.zen.co.uk...

> I have 3 downlights recessed into the landing ceiling. I am on my second
> dimmer (60 - 400W). The bulbs fitted are dimmable (according to the box).
> Presumably dimmable means they'll continue to work off a lower voltage?
Why
> would 'non dimmable' bulbs affect the dimmer switch? If my bulbs are
> dimmable, what might have happened to the dimmer switch?


Probably just a chance failure. Low energy fluorescent bulbs don't work with
dimmers which may be why yours are labelled as dimmable.

TonyB

"A"  wrote in message 
news:4336bbf3$0$3556$da0feed9@news.zen.co.uk...

>I have 3 downlights recessed into the landing ceiling. I am on my second 
>dimmer (60 - 400W). The bulbs fitted are dimmable (according to the box). 
>Presumably dimmable means they'll continue to work off a lower voltage? Why 
>would 'non dimmable' bulbs affect the dimmer switch? If my bulbs are 
>dimmable, what might have happened to the dimmer switch?
>
> Jez


Normal bulbs are usually dimmable. The energy saving (compact flourecent 
lamps) and normal flourecent lights are not.

It may also be a little bit off the mark to say that bulbs supplied by a 
dimmer switch are working off a lower voltage.

Are the downlights in the landing of the low voltage type that use a 
transformer? If so you would need a dimmable transformer.

A little more info on your bulbs and fittings may help.

Adam

"A"  wrote in message 
news:4336bbf3$0$3556$da0feed9@news.zen.co.uk...

>I have 3 downlights recessed into the landing ceiling. I am on my second 
>dimmer (60 - 400W). The bulbs fitted are dimmable (according to the box). 
>Presumably dimmable means they'll continue to work off a lower voltage? Why 
>would 'non dimmable' bulbs affect the dimmer switch? If my bulbs are 
>dimmable, what might have happened to the dimmer switch?
>
> Jez


240V versions are dimmable
the ones where you use a transformer are not
someone will be along in a min to tell me i'm wrong but thats how I 
understand it.
-- 
Cass

Yes, Vass or Cass you are wrong.

There are dimmable low voltage transformers for low voltage lighting as well 
as 240v dimmable lights.


"Vass"  wrote in message 
news:gZOdnaxwmNlHR6reRVnyig@eclipse.net.uk...

>
> "A"  wrote in message 
> news:4336bbf3$0$3556$da0feed9@news.zen.co.uk...
>>I have 3 downlights recessed into the landing ceiling. I am on my second 
>>dimmer (60 - 400W). The bulbs fitted are dimmable (according to the box). 
>>Presumably dimmable means they'll continue to work off a lower voltage? 
>>Why would 'non dimmable' bulbs affect the dimmer switch? If my bulbs are 
>>dimmable, what might have happened to the dimmer switch?
>>
>> Jez
>
> 240V versions are dimmable
> the ones where you use a transformer are not
> someone will be along in a min to tell me i'm wrong but thats how I 
> understand it.
> -- 
> Cass
> 

"Mark"  wrote in message 
news:dh90g7$snt$1@nwrdmz02.dmz.ncs.ea.ibs-infra.bt.com...

> Yes, Vass or Cass you are wrong.
>
> There are dimmable low voltage transformers for low voltage lighting as 
> well as 240v dimmable lights.
>
>
> "Vass"  wrote in message 
> news:gZOdnaxwmNlHR6reRVnyig@eclipse.net.uk...
>>
>> "A"  wrote in message 
>> news:4336bbf3$0$3556$da0feed9@news.zen.co.uk...
>>>I have 3 downlights recessed into the landing ceiling. I am on my second 
>>>dimmer (60 - 400W). The bulbs fitted are dimmable (according to the box). 
>>>Presumably dimmable means they'll continue to work off a lower voltage? 
>>>Why would 'non dimmable' bulbs affect the dimmer switch? If my bulbs are 
>>>dimmable, what might have happened to the dimmer switch?
>>>
>>> Jez
>>
>> 240V versions are dimmable
>> the ones where you use a transformer are not
>> someone will be along in a min to tell me i'm wrong but thats how I 
>> understand it.
>> -- 
>> Cass
>>
>
>


The bulbs fitted are 240V (3 off) 50W GU10 Halogen Spots.

Jez

Some help on this please. I originally fitted 6 x 20w downlights on a normal
transformer-from B+Q. the transformer now seems to be faulty. went to B+Q,
they now sell packets of 3 x 60W DIMMABLE lights "without transformer".
These are too high watts for me. Their 20W ones are descibed as dimmable. So
went to website where transfomers where on sale for 150W and descibed as
DIMMABLE-can I use this transformer or will I need 60W ones

--
Regards,
Stu Devereux.
Fax no. 08701339568
(Outside UK fax 448701339568)
E-mail. stewart.devereux@btinternet.com
"Mark"  wrote in message
news:dh90g7$snt$1@nwrdmz02.dmz.ncs.ea.ibs-infra.bt.com...

> Yes, Vass or Cass you are wrong.
>
> There are dimmable low voltage transformers for low voltage lighting as
well
> as 240v dimmable lights.
>
>
> "Vass"  wrote in message
> news:gZOdnaxwmNlHR6reRVnyig@eclipse.net.uk...
> >
> > "A"  wrote in message
> > news:4336bbf3$0$3556$da0feed9@news.zen.co.uk...
> >>I have 3 downlights recessed into the landing ceiling. I am on my second
> >>dimmer (60 - 400W). The bulbs fitted are dimmable (according to the
box).
> >>Presumably dimmable means they'll continue to work off a lower voltage?
> >>Why would 'non dimmable' bulbs affect the dimmer switch? If my bulbs are
> >>dimmable, what might have happened to the dimmer switch?
> >>
> >> Jez
> >
> > 240V versions are dimmable
> > the ones where you use a transformer are not
> > someone will be along in a min to tell me i'm wrong but thats how I
> > understand it.
> > --
> > Cass
> >
>
>

"Stewart Devereux"  wrote in message 
news:dheqtp$rcd$1@nwrdmz02.dmz.ncs.ea.ibs-infra.bt.com...

> Some help on this please. I originally fitted 6 x 20w downlights on a 
> normal
> transformer-from B+Q. the transformer now seems to be faulty. went to B+Q,
> they now sell packets of 3 x 60W DIMMABLE lights "without transformer".


60W is an unusual size for a halogen downlight. 10, 10, 35 and 50W are the 
norm. Are you sure that it is not 3 x 20 W lights?



> These are too high watts for me. Their 20W ones are descibed as dimmable. 
> So
> went to website where transfomers where on sale for 150W and descibed as
> DIMMABLE-can I use this transformer or will I need 60W ones


If it is your transformer that is faulty then change it for an approriate 
one and keep your existing lights. 6 x 20 W = 120 W so the 150W transformer 
would be the one to use.

Adam

Adam