Planum Downlight - 500mm, IP20 Wall mounted luminaire. White powder coated steel body and twin lensed optic for downlight only. Options: 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) RLS - Reacta-Link Wireless Presence & Daylight Sensor Additional colour finishes available: BL - Black Finish GY - Grey Finish