Ledvance Smart+ WiFi RGBW -älylamppu, E27, 1521 lm

The light bulb flickers periodically (every two minutes or so), where it turns blue for a split-second and then goes back to its original state. We bought three lights and two of them behaved this way. It is really frustrating given that they are pricey compared to other options, so one would expect a solid product.

The Ledvance Smart+ mobile app is something else. It is poorly made and confusing.

I'd advise to stay away from this product and go for better-priced options that actually work.