MOD Curve - 600x600 Recessed lay-in luminaire, white powder coated one piece steel body, Aluminium framed front panel. Curved polycarbonate diffuser. Options: E3 - Emergency control gear (407 lumens output) ST3 - Emergency Selftest AT3 - Emergency Autotest 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) 4PM - 4 Pole panel mount 6PM - 6 Pole panel mount C83 - CRI 80, 3000K IP44 - IP44 (from below) MODRS TETHER KIT - Secondary fix single drop MODRS TETHER KIT TWIN- Secondary fix twin drop