What is Lux
Lux is a standardized unit of measurement used to quantify the intensity of light level. It’s the unit of illuminance. It represents the amount of light that falls on a specific surface area. In simpler terms, lux is a measure of brightness. The more lumens there are in a square meter of a surface, the higher the lux levels will be, indicating a brighter illumination. Conversely, lower lux levels indicate a darker illumination.
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Here are the lux values for various natural light conditions that help to demonstrate the wide range of lux values in different lighting conditions.
Outdoor:
- Direct sunlight ranges from 32,000 to 100,000 lux
- Ambient daylight ranges from 10,000 to 25,000 lux
- Overcast daylight is around 1000 lux
- Sunset and sunrise are approximately 400 lux
- Moonlight during a full moon is 1 lux
- Night with no moonlight is less than 0.01 lux
Indoor:
- Hospital theaters are around 1000 lux
- Supermarkets and sports halls are around750 lux
- Factories and workshops are around750 lux
- Offices, showrooms, laboratories, and kitchens are around 500 lux
- Warehouse loading bay is around300 to 400 lux
- School classrooms and university lecture halls are around250 lux
- Lobbies, public corridors, and stairwells are around200 lux
- Warehouse aisles are around100 to 200 lux
- Homes and theaters are around150 lux
- Family living rooms are around50 lux
Frequently Asked Questions
How Many Lux Is Considered High Light
A light meter measures levels of illumination, in Lux (Lumens per square metre). Low light is considered to be in the range of 270 to 807 Lux, while medium light falls within the range of 807 to 1614 Lux. High light, on the other hand, is classified as being in the range of 1614 to 10764 Lux.
