This is a socket for SK6812 RGB LEDs which come in a tiny SMD package. The package dimensions are 5mm by 5mm with tiny solder pads. Wires soldered to it will break off the pads due small surface area. To allow soldering wires to it, I created this little adapter.

Assembly

1. Push SK6812 with top down into socket (LED will be held in place by two tiny snaps, light will shine through a cutout in bottom)
2. Insert wires into the 4 holdes (e.g. clipped off diode legs)
3. Solder wires to pads

Print settings (0.4mm Nozzle):

• Speed: 5mm/s
• Layer height: 0.2mm
• Filament: PLA (I used transparent but any color should do since there is a cutout in the bottom for the light)

I used active cooling with min speed of 5mm/s, so movements were at normal speeds. Total print duration is 4 minutes on my Ender 3.