If you're wanting to dip your toe into smart home automation, these switches are a great place to start. Over the past couple of years I've installed around a dozen of the switches, dimmers, and an electrical outlet. I've also wired up 3-way and four-way configurations with them.I've also dabbled with other brands of Zigbee switches and dimmers. The cheaper variety though are always lacking in build quality and tactile feedback. These switches feel like traditional, high-end paddle switches that are designed to be physically depressed daily for decades. This is important to me because I don't want to feel like I'm downgrading the build quality of my home as I make it smarter.- These use the Zigbee protocol, not Wi-Fi, so they need a hub. Before you knock that though, consider the advantages of Zigbee vs. WiFi. Probably the most relevant is that each Zigbee device on the network can relay messages through other Zigbee devices. So the more switches/dimmers/outlets you have, the further the network can reach, even if the distance is further than your home Wifi will reach.- If you're controlling a bathroom or ceiling fan, get the switch. If you're only controlling lights, get the dimmer. The switch uses a relay to turn on/off the attached load, while the dimmer (probably) uses a MOSFET. MOSFETs shouldn't be used to drive inductive loads like motors. The dimmer might work for a while but may fail prematurely. Another reviewer complained about the energy usage of the dimmer, complete with a FLIR heat map. MOSFETs get warm, that's pretty unavoidable. However, if this "leaky" energy utilization is a concern, choose the switch over the dimmer to control your lights. When a relay is off, it's truly off (though you lose the dimmer functionality and there's an audible "click" when some thing turns on/off).- I originally used these with a couple of Amazon Echo Pluses (which can function as a Zigbee hub). This worked flawlessly and was easy to set up. I recently abandoned the Echo Pluses and now directly control my Zigbee devices with an open source home automation platform called Home Assistant (HA). I have a ConBee II USB Zigbee controller plugged into my HA server and am using it with the ZHA integration. I also have HA connected to Amazon Alexa, so I can still control the devices with my Echos, but with the added power of HA. HA has a significant learning curve but allows for some seriously cool automation.- These switches/dimmers/outlets report real-time power consumption (kW/h) of whatever electrical devices they're switching. This allows some advanced home automation tools (like Home Assistant) to do things like sense if a clothes iron has been left on for more than 10 mins and turn off the outlet. Or sense when the washing machine is done with a cycle, etc, etc.- Zigbee uses the same 2.4gHz spectrum as WiFi. This is very close to the (roughly) 3.1gHz spectrum that some high-end occupancy/motion sensors like the Lutron Maestro LED+ dimmer use. These occupancy sensors emit radio waves and sense when a person enters range by measuring the wave reflections. Long story short: If you install one of these motion sensors within ~2 feet of these Zigbee devices, the motion sensor will not function (it will stay either on or off 100% of the time.)- Above I mentioned that Zigbee devices will relay messages from the hub to distant Zigbee devices that are too far from the hub. This is only true once the switch is configured! If you want to install this switch in a distant part of your house, beyond reach of the hub's range, you will need to either temporarily install the switch closer to the hub or move the hub. If the hub isn't finding the switch during the pairing, this may be the problem.I really like these devices, but If I had to nitpick about anything, it would be to ask that the little blue LED that indicates that the switch is off be able to be disabled, either a tiny slide switch on the side of the unit or in software. The light isn't nearly as bright as a lot of home electronics, but I had to cover it with a bit of white clay because I was staring directly at a blue light each night while lying in bed.

This thing and its companion switch work fine without ZigBee control, but really come alive with it.I use it with SmartThings and it works just as expected.There is no discernible heat from the device, but there is a very faint and high-pitched hum from it (you have to put your ear to the switch to hear it).Most noise comes from the dimmed lights as they hum from the discontinuous power wave. Noisiest appears to be 50% on halogen spots, but you may find differently. For my application (welcoming hallway lights) the noise is only temporary and doesn't affect use.

I ordered multiple units of these rather expensive Zigbee smart dimmer switches. I couldn't for the grace of god get them to work with my Amazon Echo Plus. Pairing problems, Loss of communication, Device not responsive. I hired experienced technicians who couldn't get them to work either. After two days of research, upgrading my Wifi routers to ensure sufficient wifi coverage, I simply gave up and called JASCO product support. I was told the model I received was not sellable and no documentation thus no support was available. Turns out, the models sent to me by Amazon (in October 2018!) were outdated models marked as ZB3001. These are NOT compatible with Amazon Echo Plus! If all the great and raving review comments convinced you to purchase this smart dimmer, make sure you end up with ZB4001 or newer.

There are several issues:First while the instructions are really quite good, sometimes (frequently in my experience putting in many light switches over the years) distinguishing between the line and load is difficult or impossible. With other dimmers I have used it really doesn't matter which is which. The device can work with electricity flowing through in either direction. Not with this one though. Fortunately, having it wrong as I did doesn't damage the switch when you turn the electricity back on. When it didn't work when I turned the power back on and it didn't work I just switched the line and all was well. Just make sure you test it before actually fitting the switch into the box!Second and most annoying the size of the switch is so big front to back that it leaves little room for the wires and wire nuts. It is not just a tight fit. Pushing the wires back into the box is likely to make some of the wire nuts come loose - not a good thing and a possible code violation. It took about 30 minutes to do a 3 minute job :(. Fortunately and luckily I didn't make any of the wires come loose so I could proceed with the paring.Third, the device protrudes a bit from the wall, making the wall plate proud of the wall by about 1/16 inch. Not a deal breaker but this is the first time I have had anything like this happen with any switch or outlet.The paring was a snap and the device works as advertised. So far (one day) I would give it 5 stars for its operation and I'm only knocking off one star for the physical size which should only be a one time issue.

I should give this product 4/5 stars since Z-Wave Plus is a better/cheaper alternative, in theory. However, since I have not used any Z-Wave Plus switches, I will give this product the full 5 stars. The reason being is that they were fairly simple to install, paired easily with my Samsung SmartThings hub (gen 2) and have been working reliably since. I can also easily control the lights through Amazon's Alexa enabled devices, but that's because of interoperability between Alexa and Samsung. Overall, the switches look good installed, I can monitor electricity usage & control lights via Samsung app. My only suggestion is to test to make sure your LED lights are compatible with this dimmer. From what I have read, many dimmer switches can create a buzzing effect with certain LED lights so this should not be taken as a negative for this particular brand.Personally I have some brands that do 'buzz" and some that do not and I've used this line of GE switch in both circuits. Oh, I'm not an electrician, so I do believe almost anyone can replace their existing switches with this. Please be sure to check and make sure you have a neutral wire available before ordering this switch!!