[Matrix]

I'm not sure - zooming in on the 1st picture it looks like lights from the actual corridor outside the studio (i.e. on the other side of the glass wall) that, due to the angle the photo was taken at - are reflected in the glass desk top?

Hopefully someone with actual insider knowledge can clarify!

From memory, they're just fancy lights (which seemed to be occupying a lot of time in replacing a 'bulb' when I was last there).