It's small switchbox to turn on and off the fans and lights.
The box is inserted in rectangular hole in Ikea Lack table top (hole dimensions 94 x 42 mm, I use drill and handsaw);
Secure box with hot glue in hole;
Nice design for standart round rocker switch (Diameter = 20.5 mm);
The front panel has symbols indicating what the switches operate;
Powered by 12V, 1,5A DC power supplay;
I use 12V LED strip and two 12V fans;
Needed some sodering cables, all negatives wires conected to all together and to power supply. Positive calbes conected to switches and then to fans/lights;