I’ve been searching with little to no luck, so I figured I would ask here. I’m looking for a 12 V landscape lighting transformer that will work with Hubitat. Truly, all I need is the transformer itself. I can use the switch to turn it on and off.
All the ones I found online have timers and light sensors and do not automatically come on when you apply power.
You just need a standard power supply/transformer of the voltage and current rating to suit your lights. Then connect that to any Z Wave, Zigbee switch that will work with Hubitat. There aren't any transformers that will work with Hubitat as they're not smart devices.
For example I have a 230AC to 12V DC 4 amp power supply that feeds the LED strip around my garden. The 230V supply to that power supply (along with some other mains powered GU10's) is switched using a Fibaro Z-Wave module.
I have one of these... it came with a timer that plugs into the outlet you see, and the cord plugs into the timer. It was easy to just remove the timer and plug the transformer directly into the outlet (as shown). I took the low voltage output and used a Zooz zen17 to create two zones, one for my house lights and another for my front steps. I use a combination of time-based and motion events to control them. Works great. I do not use a smart outlet to turn the transformer on or off. I just use the Zen to turn the various loads on and off.
johnwill1 is correct - your transformer or driver is not going be smart. You can use a smart switch or plug to control it. I use both for different zones and have them all grouped together.
a very simple approach if you already have one of the plug in timer-type transformers is to just pull the tabs off the timer so it's in an always-on state and get an outdoor smart plug to control it.
So.. I know I will catch flack for this, but I was in a similar boat. I have a low voltage lighting system for my landscape lighting and couldn't find a transformer that would work on z-wave (or zigbee). So, what did I do?? I took A Zooz Z-Wave plus Power switch Zen15 and put it inside a little outdoor rated box and mounted it next to my low voltage system. Then I plugged the transformer into the Zooz and the Zooz into the wall. Added it to my HE, then set my transformer to always on, as well as "on after power failure". Now I have a "Smart Transformer". I even get power metrics from the Zooz which is a neat little addition I wasn't expecting but fun to have. LOL
Now my disclaimer for the people that will rightfully give me flack. I have the Zooz in a outdoor plastic box, and the box, Zooz, and transformer all all under a covering and mounted 4 feet off the ground, as well as it is on it's on 15A circuit with a GFI plug, so its all OK.. LOL Been running for 3 years without an issue lol..
No flack required. Nothing wrong with having kit external if it's installed in an enclosure to the correct IP rating and protected by RCD (GFI over there)
You'll need a 12V power supply, for 3 lights this should do:
AC 110V/220V to DC 12V 5A 60W Regulated Transformer Switching Power Supply Driver S-60-12 for LED Strip Light, CCTV, Radio, Computer Project https://a.co/d/g5frdAo
A box for power supply + zwave relay
BUD Industries JBH-4961-KO Steel NEMA 1 Sheet Metal Box with Knockout and Hinged Cover, 10" Width x 10" Height x 6" Depth, Gray Finish https://a.co/d/2a1vooj
A zen16 or zen17 relay
You run your 110v wire into the box and connect to power supply. Use another wire for output of the power supply into relay #1 of say zen16, the other wire is your "zwave controlled" load you connect to your lights.
You can probably do this for 100$ of equipment and buy yourself tons of flexibility.
If they are the old dial timers those would work besides the quiet clicking noise they make. I have some old Malibu lights in my deck stairs where I just took all the "off" pins off the rotary timer and plugged it into an outdoor smart plug. Plug on and lights come on and the timer spins but it doesn't matter where its at because its set to always be on.