How many lux per day ?

The concept of lux is a measure of light intensity, specifically in the unit of lumen (lm). Lux is often used as a metric to determine the amount of light available for a particular task or environment.

So, how many lux per day do we really need? The answer may vary depending on the individual and their daily activities. However, there are some general guidelines that can help guide our daily lighting needs.

For most people, a comfortable lighting level is between 300 and 500 lux. This is typically the amount of light that is needed to see clearly and read easily without feeling fatigued or strained. However, some people may have a higher or lower light sensitivity and may require less or more light to function properly.

In terms of daily activities, here are some general guidelines for lighting:

* Artificial lighting: Outdoor lighting, such as streetlights or businesses, should be turned off between 9pm and 7am to reduce energy consumption and promote a sense of rest. Indoor lighting, such as office or living room lighting, should be turned off between 10pm and 6am to save energy and reduce the risk of fire.

* Natural lighting: Natural lighting sources, such as the sun, should be allowed to enter the room as long as it is not excessively bright. However, it is important to note that natural light can cause discomfort or reduce visibility, especially during peak hours.

Overall, it is important to be aware of the amount of light we are exposed to on a daily basis and to make adjustments accordingly to promote our well-being and productivity.