The VRG-3552 LED Vandal-Resistant Recessed Grid Light by Certolux Specialty Luminaires is a specification-grade luminaire for medium security and vandal resistant applications. The luminaire design has concealed hinges, tamper-resistant fasteners and security lenses. This maximizes impact resistance and unauthorized fixture tampering or penetration. The luminaire can be recessed or T-bar ceiling mounted. It is available in a variety of sizes, voltages and color temperatures.