A litmus test in chemistry is used to determine acidity; a lit-mesh test in lighting is used to determine light play factor. Really (even if Google disagrees). Lit-Mesh Test creates some amazing light patterns through its recycled stamped steel rectangles.
Hand-Forged Recycled Steel Mesh.
Finish: New Bronze
Dimensions: 24 in. W x 10 in. H
Item Weight: 10 lb.
Lamping: 4 x 100W Medium, Not Included