I designed this Batman-symbol LED-lamp for my wife.
It's 80 cm wide, 26,5 cm high and 18mm thick.
I designed it in 5 parts to fit the prints on a 22x22 cm printbed.
After printing i glued the parts together with superglue, filled all the gaps with putty, sanded it down, primed it and spraypainted it in matte black.
Then glued the RGB-Strip and the contoller in place.

For mounting I nailed two nails with 31,5 cm spacing into the wall and let them stand out the wall 1 cm. The mounting holes on the lamp are on the top side of the wings.

I printed all parts with 5 top and bottom layers with a 0.4mm nozzle and 0.2 mm layer height. The logo is 3 mm thick, so the front and the backside are 1mm thick and 1mm is printed with infill. This worked really well for me.

The LED-Controller i used back in 2019 when i designed this is not sold anymore.

This LED-Controller is similar but will only work via App, because the infrared sensor is not external anymore.

You need a standard 12V 5050 RGB LED Strip for this, roughly 1m length.