Looking at this project on Houzz
– http://www.houzz.com/ideabooks/4878646/

I thought that if the proposed Glulam beams are going to drop below the ceiling height, then the way they have done the lights in between the beams looks great.

I think I’m biased to a clean line (no visible beams) though.

It, in part, works because they have lots of beams closely spaced to each other.