The Fail-Safe Terrapin provides exceptional aesthetics with remarkable strength. The wide variety of products allows an interior and exterior architectural theme throughout an entire facility. ADA compliance is available up to a 42-watt maximum. Cast, extra-heavy aluminum walls of the housings offer rugged durability and afford efficient heat dissipation. AccUView UV-Guard coating protects the inside and outside of all UV stabilized polycarbonate lenses. The combination of narrow prismatic blondels on the interior and a prescription texture on the exterior of the lens provides exceptional lamp obscuration. There is a lifetime warranty against breakage.