Runway Cross - 1000mmx1000mm Suspended luminaire, extruded grey aluminium finish with opal diffuser. Options: E3 - Emergency control gear AT3 - DALI Auto test emergency control gear ST3 - Self test emergency control gear S - Switch Dimming D - Digital Dimming (DSI) A - Digital Addressable Lighting Interface (DALI) C - Bi-Level Dimming (Corridor Function)* H - High Frequency Dimming (Analogue 1-10v) R44 - Daylight regulating and Occupancy Sensor RAS - Reacta Air Wireless occupancy and daylight dimming RLS - Reacta-Link Wireless Presence & Daylight Sensor RCS - Reacta-Control Wireless, Presence RWY INSTALL KIT - Runway Installation Kit (1 Kit per installation) RWY SUSP 3M - Runway 3M suspension kit (one drop) WH - White finish BL - Black finish