What are the brightness requirements for indoor lighting？

The brightness requirements for indoor lighting can vary depending on the specific use and environmental conditions. Here are some examples of common indoor lighting brightness requirements, typically established by regulations, building codes, or industry standards:

General Office Spaces:

Open Office Areas: Typically require illuminance levels of around 300 to 500 lux to provide adequate brightness for general office work.

Meeting Rooms and Training Rooms: May require higher illuminance, typically in the range of 500 to 750 lux, to ensure clear visual communication and presentations.

Healthcare Facilities:

Hospital Operating Rooms: Require illuminance levels of up to 1000 to 2000 lux to ensure precise surgical procedures.

Hospital Wards and Examination Rooms: Typically require illuminance levels of 300 to 750 lux to support patient care and diagnostics.

Educational Facilities:

Classrooms: Generally require around 300 to 500 lux of illuminance to support student learning and teaching activities.

Libraries: Require higher illuminance levels, typically in the range of 500 to 750 lux, to support reading and research.

Retail Stores:

Retail Sales Areas: Requirements typically fall in the range of 750 to 1500 lux to provide good product display and shopping experiences.

Residential Areas:

Living Rooms and Bedrooms: Typically require illuminance levels of around 100 to 300 lux to provide moderate brightness and comfort.

Kitchens and Work Areas: May require higher illuminance, typically in the range of 300 to 750 lux, to support cooking and work activities.

Industrial Facilities:

Production Workshops: Brightness requirements vary depending on different work tasks, typically ranging from 150 to 1000 lux to meet the needs of work areas.

These are some examples of common indoor lighting brightness requirements, and specific requirements can vary based on building type, intended use, task requirements, and local regulations. When designing indoor lighting systems, these requirements should be considered to ensure they meet users' visual needs and comfort.