I note that you took my advice and posted your question on this site, in lieu of
https://www.diychatroom.com/threads/replace-an-led-driver.728790/#post-6633288
(However, you did
not post the photo of the existing "LED Driver" - with its specifications of input and output and its Model Number BUT you
did include these on the other site where you wrote:-
"I need to replace an LED driver:
https://imgur.com/cYhC2ZS
I am in UK, and have not found an identical one online. It will power an LED strip in a chandelier, and needs to be slimline and fit in a metal circular ceiling rose 15cm radius by 4cm.
The lights don't dim currently, although I would like them to. This is the light:
Comos " )
I also note that the "price) for the "Cosmos" light concerned (which you also did not post on this site) is £605.00 (!!!!) (
https://hausofinteriors.com/collections/ceiling-lighting/products/comos)
Why do you need a new "Driver" and why can you not purchase one from the provider of this chandelier?
The items in the chandelier referenced do not appear to be "LED Strips".
If the "driver" is a "constant current" device. it will
not be possible to dim these lights - since, by definition, the current is
Constant.
(The existing "driver" appears to produce a constant 220 mA while supplying between 72V and 132 V)
If you wish to dim the lights, it will be necessary to
determine the voltage at which they operate on "Full" brightness (together with an appropriate "current limiting resistor") and
provide a "consent" voltage drive - for which the voltage supplied
can be reduced (so that it and the resultant current is no longer constant),
thus dimming the lights.
Either that or obtain a Variable Current Driver. (!!)
(While conducting, the Voltage across each LED will always be (about) the same, no matter what the current. Hence, some form of current limiting is essential for the operation of LEDs. That is the nature of LEDs.)
https://www.ledsupply.com/blog/constant-current-led-drivers-vs-constant-voltage-led-drivers/ may be of interest
