Lighting that aligns with recommended practice
|Nurses’ Station||Illuminance (Lux)||Uniformity|
|Task||Notes||Horizontal (Eh)||Vertical (Ev)||Avg;min|
|Workplane||Eh at 2′-6″ AFF*||500-1000||200-400||2 to 1|
|Day||Eh at floor; Ev at 5′ AFF||300-600||200-400||3 to 1|
|Night||Eh at floor; Ev at 5′ AFF||100-200||40-80||3 to 1|
To convert lux to foot candles, divide lux value by 10.7
Illuminance levels listed in the charts above represent recommended industry standards for ages ranging from 25 to > 65.