I designed the stand for this specific LED Bar you can purchase on amazon:
https://www.amazon.de/dp/B07DPJ1KXC?ref_=cm_sw_r_cp_ud_dp_C57NM2231KNCJF89B9P2
But it will work with any other light bar or profile that has the same dimentions.
If you need any further Information about the size that fits just dm me :)
Printing Parameters:
Layer hight: 0.2-0.3
Infill : 20%
Walls : 3
Support: None