it is just I have been getting LED house signs that are 12v DC, But it seems a bit daft using a Smart Plug and then a 12v DC Power Brick, I was hoping for a all in one solution.
Thanks
Andy.
I believe there is a Shelly that runs on 12 volt.
But I don’t think there is a combined relay with transformer.
That’s a very unique product
yeah, I have been searching for over a week and found nothing… plenty of low voltage relays, just none with transformers built in.
I don’t believe I’ve ever seen smart relays which take 240v input and output 12v. Even LED drivers will only accept an input voltage equal to the output voltage.
The closest thing you’ll be able to get is a relay with dry contacts like the (wifi) Shelly 1 and the (zigbee) Aqara T2. given that the inputs & outputs are isolated on these, you’d be able to feed in 240v on the input side, then control a separate 12v circuit on the output side.
Then again, since you’re forced to have a separate 12v circuit anyway, you might as well use a low voltage relay between the transformer and the leds.
yeah, there is defiantly a gap in the market for this type of thing.
No there is no gap in the market.
This is a dumb product.
What kind of amperage should this device support?
Let’s say 0.5?
Ahh too bad, I need 2 A.
So let’s say this product has 3 A.
[Someone else] - Why on earth should I pay this much for a product when I only need 1 A.
See the issue here?
It’s completely dumb to build such a device.
Just get a 12 volt power supply of the rating you need and this will be cheaper than if someone would build several devices, each one with different voltage and amperage.
The same thing can be said for low voltage relays, why would I pay for a product that requires a separate transformer, as for amperage, low voltage relays have a max amperage throughput, as for voltage you know there is such a thing as variable voltage regulator right ?, saying this is a dumb product is not accurate IMO
Also, I mean how much would it cost to add zigbee and a relay to a power brick ?, compared with buying a smart plug and a power brick ?
they do exist for example Ikea TRĂ…DFRI Driver for wireless control, or Tuya does exactly this.
@Hellis81 oh look at that… a variable voltage and amperage Zigbee LED driver, so is this a dumb product as well ???
And this.
and this
I might have to open them up and rewire them direct to the LED board and go LED Driver, Just thought would be easier to use a smart 12v DC power brick and keep my sign’s warranty.
450 mAh power supply is about $2, perhaps there are cheaper versions.
This is one of the first I found
https://nl.aliexpress.com/item/4000837048338.html
The Tuya cost $15.
If the price is correct on the sunricher link Mark posted then that is $69.
Samotech is $38.
And this is just comparing the prices.
This does not even consider that 450 mAh might not be enough.
And that the question was “relay” not LED driver with a dimmer.
You moved the goal post to the other side of the planet and still failed in my opinion.
I was replaying to @ShadowFist for dimmers, regarding relays I was just saying that other types of products do exists so why not relays, thats all I was trying to say. I still would like a smart transformer relay so I do not have to open up my brand new house signs and void their warranty, But if the only option I have to do open them up and wire a smart dimmer to them directly so be it…
and as I said
regarding relays I was just saying that other types of products do exists so why not relays,
To have “smart transformer relay” instead of separate transformer and smart relay doesn’t have anything to do with opening your signs.
as I said I don’t really want to use 2 devices. and to use a smart dimmer inside the sign would be easier and cleaner than having a smart dimmer in the house. (atm the power is just a fused spur 240v)
I wrote 1 instead of 2 devices for relay is not related to opening your sign.
If you want some compatible dimming circuit, it’s completely another subject.
as I said I don’t, I would rather a single smart transformer, hence my reason for this thread. but we do seem to have gotten off topic…
That’s totally ok, we all have our preferences.
I just notified that it’s not related anyhow to opening your new signs…
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I don’t get it.
If you need to open the signs to connect a 12 volt line from a LED driver, why is it not required when you get a 12 volt line from this device that doesn’t exist?