absolute control over emitted light thanks to patented nano-optics; variable suspension spacing ranging from 700 - 960 mm; enable the light to be installed onto suspension fittings left over from previous lighting; basic beam angle: medium beam (MB); optimal mounting height: 3.5 to 8 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: clear PC (high mechanical resistance, UV stability); Diffuser: clear PC with nano-optics (high mechanical resistance, UV stability); Reflector: steel sheet, white (RAL 9003), modified for indirect lighting; Clips: polyamide + 15 % fibreglass; Sealing: polyurethane (PUR), foam-filled base groove; Connection: screwless seven-pole terminal block, 7-wire connecting cabling for feed-through installation (1.5 mm2 cross-section, 2.5 mm2 available on demand); Power: 24,6 W; Luminaire flux: 4120 lm; Lifetime: L90/B10; 50000 hours; Impact strength: IK10; Ambient temperature: 0|40 °C; Weight: 2,2 kg;