Illuminance Example
120,000Lux Brightest sunlight
111,000Lux Bright sunlight
20,000Lux Shade illuminated by entire clear blue sky, midday
1,000-2,000Lux Type overcast day, midday<200Lux Extreme of thickest storm clouds, midday
400Lux Sunrise or sunset on a clear day(ambient illumination)
40 Lux Fully overcast, sunset/sunrise<1 Lux Extreme of thickest storm clouds, sunset/rise