Re: Lighting for presentations w/powerpoints?

I don't have access to studio lighting (this is for a side gig) so I would have to bring in any lighting I wanted to use. Any lighting I brought in would also have to be relatively discreet (hence the pro light w/snoot idea). I can't just modify the existing lighting setup - you can see in the 2nd pic below that the only lighting available is dimmable overheads. Pictures of the problem (1) + venue (2) are below: