I'll throw in my 3 cents........ I bought a TP Link TP100 basic wifi light, I don't really care if it's the warm one or not, but I prefer the sun light leds (bluish). They do offer a bluish or changeable color temp bulb but, I really wasn't too interested in it.
Anyway, I wired up another bulb receptacle next to the switched cree lamp I already had. Amazon had a pretty good sale, so I jumped on it early, I think I got it for 11 bucks but now it's price is 20 dollars or so.
The good --
* Don't need a hub since it's a wifi lamp
* The app it uses is pretty much set it and forget it.
* It's very nice for security to have a light turn on at a certain time
* can control the light from my phone away from the house - if you wanted
* The light dims to 50% at 7:30 for movies, kinda nice
* Bulb then dims to 30% after around 10PM
* Then it goes down to 1% after midnight (again security, offers enough light to appear someone could be up)
* This creates a really nice ambient light for going to the bathroom or late night getting up to do things.
* Bulb turns itself off at around 3AM
* you could set the bulb to do different things for each day as well
* saves power by dimming and secures the place with light.
* app has a really nice power meter mode, shows how much watts the light used per day/week/year.
Cons
* It only works with amazon echo so far, I'm hoping it will work with google home and some third party apps or work with a raspberry pi in the future.
* I would like the option for an app to be able to figure out when the sun sets and turn on automatically since, I pretty much just turn it on at 5:20 regardless... it may waste an hour or so of LED time being on in the summer when the sun is still up and doesn't go down till 6:30.
* It's not as bright as my cree light, but like I said, if I need more light, I'll just flip on the cree, no big deal. I don't ever switch on or off the wifi lamp, it just does it's thing working around my schedule.
* it doesn't change colors, kinda cool if it did, but it's not what I bought it for.
Other than that, I really like the bulb, it kinda is a bit spooky like a ghost in the house controlling the bulb. I've been using it for about 5 months and never had a problem with it. Never had to funk with it or reset it. It just works doing it's thing.