Lighting has been involved in our daily life for more than a hundred years. More and more scholars and researchers believe that a reasonable lighting design in an interior environment will increase staff satisfaction and the potential for increase productivity. As one of most important factor of the lighting design, the lux level of the lighting may greatly influence the normal functioning of the room or space.
Here are some standard and recommended lux level index according to the activities, you can find some references here when you are designing or considering relamping your current lighting.
|Public areas with dark surroundings||20 - 50|
|Simple orientation for short visits||50 - 100|
|Working areas where visual tasks are only occasionally performed||100 - 150|
|Warehouses, Homes, Theaters, Archives||150|
|Easy Office Work, Classes||250|
|Normal Office Work, PC Work, Study Library, Groceries, Show Rooms, Laboratories||500|
|Supermarkets, Mechanical Workshops, Office Landscapes||750|
|Normal Drawing Work, Detailed Mechanical Workshops, Operation Theatres||1,000|
|Detailed Drawing Work, Very Detailed Mechanical Works||1500 - 2000|
|Performance of visual tasks of low contrast and very small size for prolonged periods of time||2000 - 5000|
|Performance of very prolonged and exacting visual tasks||5000 - 10000|
|Performance of very special visual tasks of extremely low contrast and small size||10000 - 20000|