| S. No | Hospital environment | Lighting specification | Illuminance( lux) | Color rendition(Ra) |
| 1 | Reception Waiting rooms/day rooms | Relaxing |
200 |
80 |
| 2 | Corridors Day Night | Transportation areas |
200 50 |
80 80 |
| 3 | Offices (clinical) General Examination | Multipurpose use |
300 1000 |
80 90 |
| 4 | Examination rooms General Examination | Visual inspections |
500 1000 |
90 90 |
| 5 | Patient rooms & wards General Reading Simple examination Examinations/treatment Night/observation Bathroom and toilets |
Multi task |
100 300 300 1000 5 200 |
80 80 80 90 80 80 |