ISO: 0-10v High Load, In-wall Smart Dimmer

[u/chuyskywalker]

I have five overhead led "bay lights" that are each 200w and use a 0-10v line for dimming. (Oddly, also four 12w recessed LEDs on the same circuit...).

I'm in search of a wall unit that can handle the dimming and the load of these big lights. The dimmer should be "smart" (controllable) and my very strong preference is for zwave. Matter is off the table, and I have no zigbee currently in my ecosystem, but I could be swayed to add it if need be. An open protocol wifi/bluetooth would be acceptable as well. There should be no hidden "intermediary" type controllers (ie: shelly) that confound the installation and interface/ui/ux. I'm trying to live by the hard rule that when the controller in my ecosystem is down, the house still works like a normal house. So switches must always switch, etc. I also have a preference towards the "decora" style switches; but that's an easy wish list item to sacrifice.

So, I've been trolling through older answers have found these options:

• Control4 C4-TV120277-SW -- This control4 dimmer is the closest I've found. Primarily, it's the only option which can handle the full 15A load. Downsides, not generally available (I've only found it on ebay), SUPER expensive ($150-$200 for a switch), and on Zigbee. I also have a strong suspicion that, while it says "Zigbee", it's likely some proprietary, quirky variant that won't work with HomeAssistant.
• Zooz Zen54 -- I have one of these and it works great for an individual unit, but it's only rated for 4 amps. Also, it isn't a wall switch, and can only pair to an on/off/momentary wall switch. If deployed per-light, would then require intermediary controller (without some complicated re-wiring).
• Leviton D2710-1BW -- Can only handle 8A (960w) so falls short of what I need. Not currently claimed to be supported in HA.
• TL-BT2-010 -- 1000w load, so not quite. Who knows what level of interface it can handle -- but likely none as it looks like a custom bluetooth protocol. Requires app with registration: boo.
• KAUF RGB Wall Switch -- Only 10a to start and not a 0-10v dimmer, but the idea of an ESPHome based switch is appealing. Going a custom build route has some merit, but I doubt I could get it to all fit in a wall switch nicely.
• Jasco Variants -- apparently Jasco made some 0-10v dimmer switches for a while, but I can't find any real docs about them or even find them for sale now. Certification was 5 years ago, so I suspect the product line is dead.

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Barring all of that, I have barely even found an inwall, dead simple, on-off smart switch that can handle this load. The rest of my house is on Lutron Caseta, which I love, but the Claro can only handle 5A. Most the rest I've found are in the same ballpack. The only smart switch I've found that can handle the full 15A of the circuit has been a Zooz Zen30 with its dry contact relay which I'm currently using. It's just...not ideal; more than just lacking dimming control, the relay button on the switch is kind tiny and not fun to use.

[u/shbatm]

Does a 0v signal on the dimmer actually turn them off? Shelly has this https://us.shelly.com/products/shelly-plus-0-10v-dimmer and you could use a separate relay device to control a higher load contactor for the the main power.

[u/chuyskywalker → u/shbatm]

Hrm, I'll look into this a bit more. I'm not a fan of the "press and hold" type dimmers, but the gen3 0-10v PM version of this does support up to 13A and controls the power through with a relay so it can fully power off the lights.