The product comes in full range RGB .exr and HDR formats which are the best for HDR images.
Resolutions provided:
16384x8192 8192x4096 4096x2048 2048x1024
Please let me know if you need higher resolution or other format.
The HDRI was made using my scene which can be found on my page.
After purchase you’ll get my full support if needed.
Thank you! Have a nice day! :)