Print it vertically for best results and doesn't need any support either.
If print bed adhesion is not good use brim.
maximum led stripe width: 12mm
i use this LED Stripes from AliExpress…

my print settings:
- Rafts - NO
- Supports: NO
- Nozzle: 0.4
- Resolution: 0.28
- Infill: 100%
- Material: PLA+
- Brand: Sunlu
- Color: Black Silk
Tags
The author marked this model as their own original creation.