The Fail-Safe FAS combines maximum-security construction features with energy-saving technology. This surface-mounted luminaire uses a one-piece clamshell housing, security lensing, and tamper-resistant fasteners to maximize impact resistance and prevent contraband concealment and unauthorized fixture penetration. It is UL/cUL listed for damp locations and can be ceiling or wall mounted. The FAS series is ideal for confinement/security applications; it is suitable for use in inmate cells, psychiatric wards, secure corridors, and general population areas.