This is a wonderful LED Light based on the WLED project. I used a WEMOS D1 mini Chip which you can purchase for small money (3-5€), a WS2812B LED strip with 30 LEDs, Micro USB Connector board, a 470 Ohm resistor and some cable. And you need some M3 screws. I used 4 x 5mm for the cover at the bottom, 2 x  5mm for the USB connector, and 2 x 15mm for the “stock”.

There is a WLED App in the app stores to control the light with your phone. I connected it to my smart home via iobroker.

If you need help with WLED and how to put the electronic parts together, take a look at YouTube, there are plenty of videos in different languages. And the Github page of WLED of course.

The print is quit easy an straight forward, only the Light coverings are printed in vase mode. I used white PLA for it. I did a lot of testing with transparent PLA but it never get that opaque, you always saw each single LED.  
The “stock” in the middle I printed with 0.4 layer hight, since no one will see it and it is much faster.

For power supply a 1A USB source is sufficient.