Searching Dimmer for AR111 12V Led lights

Hardware
1

Hi,

I’m looking for a (Zigbee or Ethernet) dimmer which I can connect to a physical switch, but also can connect to a serie of AR111(GU53) 12V AC LED lights.
The 12V led lights are connected to a transformer which transforms the signal to 230V.

I tried to use the Girgier Tuya ZigBee Dimmer Module (see below)

afbeelding
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But when I connected the lights, they weren’t reacting that well.
230V lights are doing really well, so I think the 12V AC tranformer is the issue.

So I’m looking for a dimmer which:

  • Can connect to a 230V to 12V AC transformer and still work fine
  • Can connect to a lightswitch so I can pulse-dim the environment with a button
  • Is managed by Zigbee(No WiFi please), so I can connect this to HomeAssistant

I also looked at replacing the light with 230V LED-bulbs, but I’m looking for a LED-bulb which I can dim-to-warm.

3

If it’s not a heavy magnetic transformer, quite likely misbehaves with traditional dimmer. Next issue is that those LED lights have driver inside (LEDs are not powered with AC) which quite likely misbehaves, if not differently specified.

4

Does this YT help any? https://www.youtube.com/watch?v=mYiXIr1Kh2k

5

Hmmm.

if I check the transformer I see no DC in it. Only AC.
I’m looking for this kind of light: https://www.any-lamp.com/noxion-lucent-led-spot-g53-ar111-7-4w-450lm-24d-930-warm-white-best-colour-rendering-dimmable-replaces-50w-8719157034661?switch=5437171064331493619

Those are working with 12V AC with this transformer: Osram Mouse 70VA 230V Transformer 12V | Halogen/LED - Dimmable | Any-lamp

6

Too bad not,

it is about LED strip drivers. Not ceiling lighting.
But thanks for notifying. Interesting topic for another project

7

I didn’t say the lamps don’t work with AC, but they have driver inside.

So this is your transformer? It’s dimmable (both leading and trailing edge), so that shouldn’t cause a problem. But it has load range of 20-70W…

8

Aaaah, so the problem is is that the wattage is getting too low if I understand correct?

9

Only you can verify, just additional factor here…
The transformer you linked is compatible with the TYPE of dimmer you posted. But I consider all AE Tuya devices as crap, so who knows. Another question is your lamps, are they compatible with this dimming approach…
My bet would be crap dimmer or too low load.

10

Should it be load?

If I see how the light is reacting, when I try to dim the light. It only dims 2 lights in a group of 4. The other 2 won’t work at all. Dimmer is not going fluent, but with ‘shocks’.
Every lamp has it’s own transformer, and all the lights are parallel connected.

If I have a 230V lamp without transformer, it works flawless.

But what should you suggest what I use since the AE Zigbee stuff is crap?

11

Then every lamp has to be within the min-max wattage range.

Shelly, Sonoff, whatever that you can trace the manufacturer and certificates.

12

Switching power supplies being dimmed by pwm is always going to cause you grief. Clash of technologies.

13

Yes, but that dimmer is triac and transformer supposed to be compatible with leading edge dimming.

14

Ah,

I found out that I have different problems :slight_smile:
There are multiple types of lamps implemented in the house

The transfortmer is always the Osram Mouse, but there are multiple types of lights:

  • The LED is an Osram AC01105 (12V/9.5W/1A)
  • The Hallogen is a Philips Masterline 111 (12V/45W/

So I guess we have a problem with the wattage?
If yes, is it possible to connect multiple lamps to 1 driver to solve this? Or is that not a good idea?

As a bonus we also have the Philips Masterline halogen lamp of 45W connected.

So:
I think I’m gonna replace all the halogen lamps with the following:

Is this a good idea? Or is a LED light with an external driver a better idea?

For the Osram LED’s: Should I replace those also? Or just order another driver for those so they can use the lower wattage?

Or is my idea totally wrong?

15

That’s transformer. not dimmer.
Your posts are not easy to read…
If you have that “Osram Mouse 70VA 230V Transformer 12V”, there has to be one or more lights in parallel connection that make 20-70W combined.

16

If you are drawing more current/wattage than the step down transformer is rated for, you are inviting trouble. A ceiling fire can be fatal.
Adding your requirement for it to be dimmable introduces yet another device in the chain.
Asking for the actual LEDs to have adjustable color temperature is another variable.
Why not just buy LED devices that run off 230volts, and have dimming and colour control built in? Ones with robust HomeAssistant integration.
Your lighting shop will offer you lots of good advice, and as a bonus, you may reduce having older transformers that may be inefficient and nearing their end of life.
Life experience advice: Keep the roof insulation at bay. Lights and transformers do not like to be covered for heat buildup. See if there are little ‘chimneys’ / shrouds surrounding your lights. If so, re-use them. If not, consider installing some, or using IC, IC-F, IC4 rated LEDs.

17

ah yes, I see. Sorry about that. Change it right away.

But that’s indeed what I was curious about, if it is possible to count the wattage. However, if I read the post of IOT7712, I think the idea to change all the lights which have seperate transformers, for new ones with a built in transformer.

18

You have a number of issues to consider.
-Cost, both up front and ongoing power consumption.
-Device life of your existing step down transformers and dimmers.
-Risk as devices break down. Being up a ladder, inside roof space, heat buildup, multiple rewiring connections, etc.
-Flexibility with color and light level requirements.
-Integration to your lifestyle, with HomeAssistant being the puppeteer to pull it all together.

Keep doing your research with those in mind. Often the cost of modern technology with added functionality is similar to replacing just one component in your existing setup, however I have found that cheapest is usually not the best.
Maybe try one device? If you are happy with it, then decide to do the rest.