The LED Lighting Upgrade Kit by TH3D Studio is fantastic mod to your Bambu X1C. The included wire clips leave a bit to be desired, which is where this print comes in – provide a cover to tuck away the cables.
Bill of Materials:
If you don't have any of the magnets, the MEALOS Mini Magnets on amazon is a good combo to start with.
The prints are spaced for a interference fit with the magnets (you may need a needle nose pliers to push in a magnet, or a soft mallet to hit them), but you can never be too safe with a dab of epoxy.
When installing magnets into the angled bracket, be sure to note the polarity of the magnets! You wouldn't want to have a pair of magnets repelling each other.