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Unlock Lighting — lux on the work surface
Design of lighting systems according to EN 12464-1
The lumen method E = (Φ · n · UF · MF) / A: find the lux in the room or the number of luminaires needed to reach your target lux. Utilisation and maintenance factors are your own inputs — indicative default values (UF 0.6 / MF 0.8) and target lux (office 500, corridor 100) are shown, cited, as hints.
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