Lighting Power Density & Illuminance Standards

Comprehensive lighting guidelines for residential, commercial, industrial, and institutional spaces — optimized for LED efficiency and human-centric design in compliance with global standards.

LED & traditional LPD standards by space type – W/m² and illuminance (lux) tables for residential, commercial, and industrial buildings.

Lighting Design Standards

Residential Buildings

Room / Space Traditional LPD (W/m²)
Current → Target		 LED LPD (W/m²)
Current → Target		 Illuminance (lx)
Living Room 7 → 6 3 → 2 100
Bedroom — — 75
Dining Room — — 150
Kitchen — — 100
Bathroom — — 100

Office Buildings

Room / Space Traditional LPD (W/m²)
Current → Target		 LED LPD (W/m²)
Current → Target		 Illuminance (lx)
General Office 11 → 9 4.5 → 4 300
Premium Office / Design Studio 18 → 15 7.5 → 7 500
Meeting Room 11 → 9 4.5 → 4 300
Service Hall 13 → 11 5.5 → 5 300
Archive Room 8 → 7 3.5 → 3 200

Commercial Buildings

Room / Space Traditional LPD (W/m²)
Current → Target		 LED LPD (W/m²)
Current → Target		 Illuminance (lx)
General Store 12 → 10 5 → 4 300
Premium Store 19 → 16 8 → 7 500
General Supermarket 13 → 11 5.5 → 5 300
Premium Supermarket 20 → 17 8 → 7 500

Hospital & Education

Room / Space Traditional LPD (W/m²)
Current → Target		 LED LPD (W/m²)
Current → Target		 Illuminance (lx)
Operating Room 30 → 25 12 → 11 750
Laboratory (Fine) 18 → 15 7.5 → 7 500
Classroom / Reading Room 11 → 9 4.5 → 4 300
Pharmacy 20 → 17 8 → 7 500
Ward 6 → 5 2.5 → 2 100

Industrial Facilities

Room / Space Traditional LPD (W/m²)
Current → Target		 LED LPD (W/m²)
Current → Target		 Illuminance (lx)
Precision Machining (<0.1mm) 19 → 17 8 → 7 500
Electronics Assembly 20 → 18 8 → 7 500
Warehouse (Fine Parts) 8 → 7 3.5 → 3 200
Control Room 18 → 15 7.5 → 7 500
Boiler Room 6 → 5 2.5 → 2 100

Includes full tables for hospitality, sports venues, libraries, transportation hubs, and detailed notes on room index adjustments.