unique design, resistant against humidity and dust, with IP66 enclosure rating and built-in aluminium heat sinks; optimal mounting height: 3.5 to 10 m; digitally dimmable DALI driver (AC/DC), backup power supply with self-test. and operating time 3 hrs.; emergency back-up power supply for permanent and emergency lighting, connected to L3 (lum. flux 440lm); Body: dark grey ABS (high chemical resistance, UV stability, RAL 7001); Diffuser: translucent acrylic (AC), UV stable, chemically resistant; Reflector: steel sheet, white (RAL 9003); Clips: polyamide + 15 % fibreglass; Sealing: polyurethane (PUR), foam-filled base groove; Connection: screwless seven-pole terminal block; Power: 18,2 W; Luminaire flux: 2810 lm; Lifetime: L90/B10; 50000 hours; Impact strength: IK06; Ambient temperature: 0|40 °C; Weight: 1,75 kg;