Polycarbonate Diffuser. Vandal proof. Extra wide scale curved lens. Vandal resistant linear ambient LED luminaire featuring an unbreakable polycarbonate diffuser. Diffuser is secured by heavy-gauge steel retaining strips and tamperproof screws. Housing fabricated from 20 gauge or optional 16 or 18 gauge cold rolled steel. All internal components are protected. Designed to withstand severe cases of vandalism and abuse.