Here’s a photo of some interesting museum displays from the Koenigstein Castle in eastern Germany. Rather than light the museum displays with overhead lighting, they have used small LED lights around the perimeter of the display cases. The lights were the size of miniature Christmas tree lights, and spaced about an inch apart all around the edges of the display box.
In many cases, you don’t want a lot of light on the museum exhibits, and this is a way to have well lit museum displays without putting a lot of light on the fragile artifacts.