this is a bracket that I designed to mount a 110x60mm 1w solar panel to a waterproof case for my Meshtastic repeater project. This design has a slide in track for the panel. It is intended to be mounted with BHV double sided adhesive.

here is a link to the panel and case I used for this project.

solar panel 

https://amzn.to/3YkN9MW

waterproof case 

https://amzn.to/4iy0NDy