Chapter 3: Illumination for Interior Applications

Standards for Various Interior Locations

- Living rooms: 100–150 lux  

- Bedrooms: 50–100 lux  

- Kitchen: 200–300 lux  

- Study/Office: 300–500 lux  

- Commercial shops: 500–750 lux  

- Industrial workshops: 750–1000 lux  

(These values are typical standards; they ensure comfort, safety, and efficiency.)

Design Considerations

Residences (1/2/3/4 BHK)

- Uniform lighting in living areas for comfort.  

- Task lighting in kitchens and study corners.  

- Accent lighting for décor and mood.  

- Energy efficiency: Prefer LEDs or CFLs.  

Commercial Spaces

- High illuminance for product visibility.  

- Colour rendering is important for retail (true colours of merchandise).  

- Flexible lighting schemes for display changes.  

- Emergency lighting for safety.  

Industrial Premises

- Bright, uniform lighting for precision work.  

- Glare control to avoid worker fatigue.  

- Durability: Lamps must withstand dust, vibration, and heat.  

- Safety lighting in hazardous zones.  

Illumination Schemes

Residential

- General lighting: Ceiling fixtures, LEDs.  

- Task lighting: Desk lamps, kitchen counters.  

- Accent lighting: Wall sconces, decorative lamps.  

Commercial

- Ambient lighting: Fluorescent or LED panels.  

- Spotlights: Highlight products.  

- Emergency lighting: Backup lamps.  

Industrial Units

- High-bay lighting: For large halls.  

- Task lighting: Focused lamps at workstations.  

- Safety lighting: Exits, hazardous zones.