On Tuesday, 11 February 2020 16:59:50 UTC, Dave Plowman (News) wrote:
In article ,
wrote:

My flat's main room ceiling lighting is OEM, apart from adding shades
and replacing bulbs. It has two dangling lights controlled by a 2-spst
switch pair by the door.

The main room of the flat of my next-door neighbour (not the recently
aforementioned neighbour) would originally have had the same. It now
has a double-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
bulbs and dimmers.

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.

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