This is about the only no-neutral dimmer out there and I found that it worked great. I wired it up following the instructions with Black wire to line and the Red wire to load(light) and it worked without the neutral wire. I paired it to Home Assistant using my SONOFF Zigbee 3.0 USB Dongle Plus-E Gateway connected using Zigbee2MQTT. There are other comments about the wires being thin, and they are. But these days with LED bulbs, for a typical room you are only drawing 16 to 32 watts which is only about 1/4 amp. I found online that an 18 gauge wire can handle 10 amps, so I don't see it as a problem.

Instructions are terrible if your not an electrician but I figured out how to jump the neutral wire back to the switch to get things working. Old wiring with no neutral and I have perfect dimming of LED light without any flicker.

Dimmer works good, the LED light on the switch was too bright put some white electrical tape to fix the problem, can’t get it to connect to my echo spot ☹️ is one of the reason I bought it and because I didn’t have a neutral… at least it works still gotta get up and turn it off my lights lol

While it is easy to find a Zigbee on/off switch with no neutral, an actual dimmer is a rarer entity. This one works and seems to work well. I have only had it a few days, however, so I cannot speak to its longevity.The dimmer installed easily with just two wires, load and live. I taped the ends of the other two wires and tucked them out of the way in the back of the electrical box.By the time I got to my computer, the dimmer had already been discovered by Zigbee2MQTT as a Sunricher HK-SL-DIM-US-A. Other reviewers reported that while Zigbee2MQTT found the device, it reported it as Unknown. I am running Zigbee2MQTT version 1.38.0 so I assume a simple update for those users will result in the unit being discovered correctly. The server found settings for State, Brightness, Effect, and Power-on behavior. It also found display values for Power, Voltage, Current, Energy, and Linkquality.From there I was able to define a thing and items in Openhab and, finally, export those to Alexa.I plan on purchasing three more to handle the kitchen, dining room, and family room. For the kitchen, I will see if the push button switch works.Update: Upon finding the PDF version of the wiring instructions, I realized that I had the switch wired wrong. When there is no neutral, the neutral terminal on the dimmer should be connected to the line. Once I did this, it eliminated an annoyance I had with the switch where it would flash when set to 100% brightness. I updated my rating to 5 stars.Update 2: I purchased two more of these dimmers. One was connected with a neutral and worked as expected. The last one replaced a three way switch. The dimmer took one side while the other switch is a momentary switch. A quick press on the momentary switch toggles the light on and off while a long press adjusts the brightness. All three work as routers in the zigbee mesh.

This little dude is absolutely incredible – he can manage almost this entire casa single-handedly and without getting the slightest bit tired.Now, let’s start with the fact that it does not require a neutral wire in order to perform its duty. Now that, dear reader, is easy installation on a sandbag hauler. It is so easy to install since all one has to do is to plug It in to the nearest outlet and voila, smart lighting control!However, it really stands out in this realm—this switch is compatible with both Alexa, Google Home and HomeKit. And that, you know, means that we have now got to be always on the alert. No more platform wars! Much like choosing between Amazon, Google or Apple for your everyday use, you can control your lights no matter where you are.And as we know, the panel still have the feature of adaptive dimming too. In fact, it is like a lighting wizard it switches the light just right without hampering the amount of brightness that is produced. No more trial and error or waiting for these stupid dimmers to only get them to not function correctly.The only downside? You may begin to feel complacent with yourself beside this bright, cute and slightly obsessive little-performing overachiever. But hey, at least your home will be brighter than the embarrassing experience that was just described! Worth it.