This will be a quick review as there are much more in depth ones out there but few with any photometrics on the light.

These lights are GREAT! I have used many LED “cinema” lights and there is a vast difference in them. I have a $7000 high-output LED fixture that does not have as good of color accuracy as the Light Storm. This has a CRI of 97. It is incredibly bright for its size price point. It is very well designed and all of the components seem very robust and built for abuse.
On full, it measures 20 FC at 10′. That will give you about an F2.8 at 800iso.