Neighbour's installation has dimmer switches plus ...

My flat's main room ceiling lighting is OEM, apart from adding shades and r
eplacing bulbs. It has two dangling lights controlled by a 2-spst switch p
air by the door.
The main room of the flat of my next-door neighbour (not the recently afore
mentioned neighbour) would originally have had the same. It now has a doub
le-dimmer switch pair by the door, a dangling light at one end with a bulb
which works, and at the other end a three-bulb ceiling-mounted fitting with
no bulbs.
The dimmers would have been installed for/by the previous resident, meaning
at least eight years ago, and therefore designed for incandescent filament
bulbs.
She wants to have bulbs in the three-bulb fitting.
I remember that nowadays one must be careful about compatibility between bu
lbs and dimmers.
She is out now, and I have not yet looked at the dangling bulb.
I have not yet found anything up-to-date-looking about this in the Wiki-FAQ
.
So, what would it be best to do?
P.S. I'm still catching up on recommendations for Win7 -> Win10.
Reply to
dr.j.r.stockton
In article ,
It's just possible the dimmers may work with LEDs. I have MK grid ones dating from the 90s which do.
You won't break anything by trying LED bulbs on a none LED dimmer.
Reply to
Dave Plowman (News)
I have bought LED bulbs from homebase that are both cheap and alledely dimmable. They sort of dim - not great, but dim they do. On a bog standard dimnmer.
You can get LED compatible dimmer modules to replace the rotary knob things in the existing dimnmer foir not huge money
Reply to
The Natural Philosopher

...
Thanks. I have now seen the dangling bulb, which is LED; it works on the existing dimmer.
I have some spare LED bulbs, which are all BC; but her fitting is ES. I have a BC-ES adaptor, but it is the wrong way round :-(>.
I'll get an ES bulb to be tried on the next convenient day.
Reply to
dr.j.r.stockton
If TLC prices are to go by, you'll not save anything over buying a complete one. Of course if the existing plate matches other fittings, just changing the modules can make sense.
Reply to
Dave Plowman (News)
All perfectly doable. She needs LED bulbs which are dimmable - not all are - and she needs a dimmer switch which is capable of handling LEDs.
When I asked a similar question a while ago, Adam recommended the Varilight V-Pro range. I fitted one when I fitted a new 5-bulb pendant light in my dining room using dimmable LED bulbs - and it's been fine.
It may simply be a case of replacing the existing two-gang dimmer switch with one of these:
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or similar - they come in various finishes to suit the decor.
Reply to
Roger Mills

Not true at all. If you're lucky they'll work fine together. If you're unlucky the lamps will use CR PSUs which die quickly on trailing or leading edge dimmers.
NT
Reply to
tabbypurr
snipped-for-privacy@gmail.com writes:
Particularly if the LED load is less than the minumum rated load of the dimmer. The smell from an exploded LED bulb hangs around for weeks.
Reply to
Jon Fairbairn
In article ,
I've never damaged a LED by *trying* it on a non trailing edge dimmer. Long term use might, of course, but why would you?
Reply to
Dave Plowman (News)

then you've not used a CR PSU led light for that job.
nothing long term about it, the PSU R experiences gross overload and smokes in seconds.
NT
Reply to
tabbypurr
I found the Varilight vpro range very good with LEDs declared as dimmable.
3 operating modes - trailing, leading and something else can be programmed as well as max and min settings.
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Reply to
Tim Watts
Indeed. When LED bulbs finally became affordable I replaced 10 x 50W halogen bulbs originally configured split over 2 x dimmer switches with "dimmable" LED bulbs but all wired as a single circuit to keep the load up.
Switched them on and the bulb closest to the dimmer blew, switched it off and thought it might just have been a duff bulb as all the rest were fine so took it out and switched them back on and the next (now the closest) bulb blew.
Replaced dimmer with a regular light switch after that and use a small table lamp for softer lighting.
Reply to
www.GymRatZ.co.uk

Dimmable LEDs can not contain CR PSUs, they don't survive chopper dimming. The only way to tell a CR PSU LED from an SMPSU LED is to open it up.
NT
Reply to
tabbypurr
"Dave Plowman (News)" writes:
I don?t have theory, I have practice.
But I imagine that (assuming some inductor in the dimmer circuit) if the load is too low it generates spikes ? 240V that the LED can?t handle. Of course, it could have been coincidence, but I?m certain about the smell.
Reply to
Jon Fairbairn

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