TiO2 Smart LED Light Bulb 8W 800lm E26 with 24/7 Air Purification, BLT+WiFi Smart Bulb, RGB Full Color, Compatible with Alexa & Google Assistant, No Hub Required

I tried this bulb for a week, the app, "WiZ" is a bit broken. When installing it, it tries to show a Terms of Service, which is missing on their web server, so spawns the 404 error in a new browser. You can bypass this brokenness by going back to the app and pressing the back button on your device, which will load the main interface. First it makes you add a room, then the device. Once the device is added, the app isn't too bad (except you will have to deal with the ToS bug above EVERY TIME YOU LAUNCH IT).As for the bulb itself, it is not bad. The communication from the bulb (eg pairing mode) is a smooth fade rather than a hard on/off like some of the cheap bulbs.Compared to a cheap RGB bulb (1/8th the cost), this bulb has the same lumen rating, and color range, but uses 0.2w less power (based on both bulb's printed claims).Now, for the TiO2 stuff, it is hard to tell if it is legit or not. I have a CO2 PPM monitor and while it does appear to read slightly lower while the bulb is plugged in, it is hard to tell if the environmental changes are from the bulb or not. The biggest part that makes me doubt it is that it claims to continue to "purify" even when off.Aside from the TiO2 possibly being a gimmick, and the shoddy broken app, this bulb is actually pretty nice. Would I recommend it? Not for $40, especially with the app acting the way it does.Brand name bulbs are around this price, so its not really "too expensive", but for RGB lighting you can definitely go cheaper if you don't care about the TiO2 thing. Also the brand name bulbs typically do not have broken apps.I will come back and give this a star back if/when they fix the app.

This Qivation smart bulb with the iPhone app is likely the most capable bulb I've ever seen. Easy set-up. Dims all the way down. Curious themes to experiment with.Over the top controllable. Very impressive.

The product is very good and can be easily linked to the phone. And there are many colors and light modes can be switched, and the light is very good