This is an IKEA SKYDRAG LED Light Bar Holder for the Prusa i3 MK2/S and MK3/S/+.
Lamp used:
SKYDRAG Size 40cm
https://www.ikea.com/de/de/p/skydrag-led-lichtleiste-arbpl-klschr-sensor-dimmbar-anthrazit-90439628/
904.396.28
The cool thing about the IKEA SKYDRAG LED is that they can be integrated directly into Philips Hue.
The LED Holder can be attached directly into the hexagon holes on the printer. The cable of the LED runs inside the Holder.
I recommend to print with Brim, because the support surface is not so good due to the hexagon structure.
But maybe it is also due to my settings.
The author hasn't provided the model origin yet.