Gemini Metro: Gemini Metro S12 luminaire is a light fitting suitable for sub surface rail escape routes. 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. IP54 and rated to IK08 (5 joules of energy). Zinc coated steel body with frosted glass diffuser held against silicone gasket by socket cap stainless steel screws. Electronic control gear on removable tray for ease of upgrade/ repair with fused plug and socket connector block. Efficacy of 82 lm/W. Suitable for wall or ceiling mounting and finished in white polyester powder coat. Colour Temperature:4000K CRI:>80 LED Lifetime L80B10>72,000h at 25oC ambient.  Driver Lifetime up to 100,000h at 25oC ambient.