Full definition
Adequate illumination level for each work area based on visual task complexity. Minimum lux levels: storage and corridors 50 lux; general workshops 200 lux; assembly and visual inspection 500 lux; precision and electronics work 1,000 lux. NOM-025-STPS requires measurement with calibrated lux meter and uniformity criteria (max/min ratio). Inadequate lighting increases errors, fatigue and accidents by 20-40%.