Illuminance (lux / fc / µW/cm² / W/m²)
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Illuminance is the measure of the amount of light falling on a surface, expressed in lux (lx) or foot-candles (fc). In occupational hygiene and safety, inadequate lighting is a significant hazard contributing to eye strain, fatigue, headaches, and increased risk of slips, trips, falls, and errors. Conversely, excessive lighting or glare can also impair visual performance. Illuminance measurement is critical for workplace ergonomics assessments, hazardous area evaluations, construction site safety, and compliance with task-specific lighting requirements across industries including healthcare, manufacturing, and emergency response.
Illuminance is the amount of visible light on a work surface, typically measured in lux or foot-candles. Rent light meters from RAECO Rents to verify workplace lighting levels for safety, visibility, and task performance in industrial, commercial, and construction environments. For optical radiation evaluations, select instruments can also support UV and other light measurements to help assess specialty light source exposures.
Regulatory Exposure Limits
As of March 09, 2026
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ACGIH TLV
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