Glass Beads Reflective Vinyl/Film uses microscopic glass spheres to bend and reflect light back to the light source. Glass bead tapes are about 30% efficient. This is a disadvantage.
However, there are three advantages that Glass Beads Reflective Vinyl/Film has over most prismatic tapes.
Firstly, Glass Beads Reflective Vinyl/Film are much more affordable. This is because they are simpler to manufacture. Secondly, most Glass Beads Reflective Vinyl/Film are CAD cuttable meaning that you can cut letters, number and designs out of the tape and create reflective signs or graphics. Thirdly, Glass Beads Reflective Vinyl/Film reflect light back at wider angles.