features CLEAN II Industry Housing made of welded black steel, with white, antistatic powder coating (resistant to oil vapors, chemical substances, disinfectants, and cleaning agents) Cover made of PMMA for chemical resistance in clean rooms and industry applications Thermoforming technology, frameless design for high hygiene requirements and easy, quick cleaning LED service life: 50000 h before luminous flux is reduced to 90 % of the initial value Colour rendering CRI Ra > 80 and Ra > 90 for office applications Color temperature 4000 K (neutral white), 3000 K (warm white) and 6500 K (cool white) available as variants Chromaticity tolerance between multiple luminaires of up to 3 MacAdam ellipses Certified by the Fraunhofer Institute – Suitable for use in clean rooms of cleanliness class 1 ...