Update 14.03.2024
I Added a Version with 4 Layers for more stability and a support Layer if you have problems that the parts dont stay connected
Use my print profile, it printed perfect on my P1S.
Electronics:
I used a 12V LED light strip, a DC barrel connector, a 12 V power supply and some wires
The power supply and the DC barrel connector I used
https://www.amazon.de/dp/B016LV20X6?ref=ppx_yo2ov_dt_b_product_details&th=1
https://www.amazon.de/dp/B09PD6J4BN?psc=1&ref=ppx_yo2ov_dt_b_product_details
Assembly: