They CANNOT be dimmed from the old-style dimmers for incandescent bulbs - those dimmers reduce the power to the bulb, and these bulbs require full power for the Zigbee radio signal to function

Then all of a sudden, if I lose power to my switches (i.e., the power goes out), ALL of my Singled bulbs become unavailable and I have to go through a painful process of resetting and adding again to my network

As soon as I powered the lamp, the bulb showed up in my Smart Things app, and available to use with Alexa

I fixed this with the SmartLighting app inside SmartThings by setting the dimmer to 100% when powered on

Now we have to do the dame every time we lose power, and it can take days of trying before they reset

The wiring of the switch deprives the bulbs of consistent power and can cause them to, among other things, come on randomly

There is a minor delay when powered up

Then, out of nowhere, the hub just dies completely (no power, nothing) and the bulbs stopped responding to my Alexa a few days before the hub died

It also goes on automatically, if the power is interrupted, so if you use it in a socket with a usual light switch, it will come on when the switch does

Hub Worked great while it lasted, lasted 2 (TWO) months, now the hub has no power, so now my lights dont work

We lost power this weekend and now one of them can't be connected to the hub but the bulb still works with the light switch.