Workers on an oil platform filmed the strange light emanating from the seabed

[putnam6]

Could be a gass upwelling. That would make the surface look white.

Also could be the Sun shining through a hole in the cloud cover.

I was expecting something actually showing underwater lights but this only shows the surface at a long distance and not light from the bottom of the sea. The description of it being on the sea bed is not indicated in any way by this video.

Yeah title is not mine, just it copied from Reddit...

I'd say gas bubbles are the likely culprit but it would have to be a decent-sized release I couldn't find any similar images showing dive lights.