There are plenty of cool smart lamps available on the market. You could always build your own though. Adafruit has published a guide that shows you how to build a Bluetooth controlled LED lamp with an Adafruit Feather 32u4 Bluefruit LE and a NeoPixel ring.
The NeoPixel ring can be controlled using the Adafruit Bluefruit LE Connect app for iOS or Android. You will be able to change the color of the LEDs or show different animations. More information about the project is available here.
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