Terminus Surface S12: Terminus Surface S12 is a cylindrical downlighter suitable for sub surface rail applications. Designed in accordance with fire precautions for subsurface rail stations (Section 12). Complies with London Underground subsurface standard S1085 utilising low smoke, zero halogen cables and control gear. IP65 and rated to IK08 (5 joules of energy). Die cast aluminium body with clear toughened glass diffuser. Integral electronic control gear with fused terminal block. Efficacies of >112 lm/W. Suitable for ceiling mounting and finished in titanium polyester powder coat. Colour Temperature:4000K CRI:>80 LED Lifetime L80B10>55,000h at 25oC ambient. Driver Lifetime up to 100,000h at 25oC ambient.