A system and method for reducing vehicle window visible light transmission when high beams are detected. The polymeric microparticles include an acrylic polymer. The device includes multiple laser sources. Measures are taken in order to prevent ionized atoms from recombination with short-lived nucleus. A fiber optic cable has its fiber epoxied to a connector ferrule and the epoxy is cured in a curing oven. The covering substrate includes a non-metallic covering with a tab defined within the perimeter of the substrate.