Typhon - 1500mm Single, IP65 Surface mounted moisture resistant luminaire. GRP body, polycarbonate diffuser. Complete with tooled access Stainless steel diffuser retaining clips. Options: LE3 - Lithium Emergency (421 lumen output) LS3 - Lithium Selftest LA3 - Lithium 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) R44 - Reacta 44 Daylight and Presence Detection Sensor R25E - Reacta 25, On / Off High Frequency R25C - Reacta 25, Corridor Mode* RLS - Reacta-Link Wireless Presence RLM - Reacta-Link Wireless Microwave Presence & Bright Out RCME - Reacta-Control Wireless Microwave On/Off RCMC - Reacta-Control Wireless Microwave Corridor Mode* *Bi-Level Dimming. Will only dim the luminaire to 10% during absence and brightout, it will not turn the luminaire off.