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; electronic driver ON/OFF (AC, DC on request), backup power supply with self-test. 3 hours operating time.; 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 five-pole terminal block, 5-wire connecting cabling for feed-through installation (1.5 mm2 cross-section, 2.5 mm2 available on demand); Power: 52,8 W; Luminaire flux: 7900 lm; Lifetime: L90/B10; 50000 hours; Impact strength: IK06; Ambient temperature: 0|40 °C; Weight: 2,85 kg;