I bought teckin bulbs four years ago and they have worked without fail, one that comes on at night on my porch every single day. The new ones I’ve purchased have all been solid so far
I have one in every room, these things are very responsive and they work every time. Very happy with these bulbs
Trying to get the app to connect and manage the bulb can be a pain, trick is to turn the light on and off very fast about 5 to six times, and I mean fast, if you slowly turn it off then back on it won't go into pairing mode, that is when the light blinks off and on.
I own several different Teckin products and they all work flawlessly. I highly recommend them.
Good while they work but I had to replace 2 after only a year. I expected these to last longer.