Clamp lamp spring (repair)

My lamp clamp broke so I designed and printed an element that is stronger than the original. During testing, the second arm broke and I ended up designing the entire clamp.
I printed with PETG and it's really strong. The filling must be full (100%).
The gripping elements must be made of TPU because they are pressed in.
The mounting hole has a diameter of 100mm.
I have shown the dimensions in one of the photos.