Lighting Levels
| TYPE OF ACTIVITY | FOOT CANDLE LEVEL |
|---|---|
| Public spaces with dark surroundings | 3 |
| Simple orientation for short temporary visits | 7 |
| Working spaces where visual tasks are only occasionally performed | 15 |
| Visual tasks of high contrast or large size | 35 |
| Visual tasks of medium contrast or small size | 75 |
| Visual tasks of low contrast or very small size | 150 |
| Visual tasks of low contrast and very small size over a long prolonged period | 300 |
| Prolonged and exacting visual tasks | 750 |
| Special visual tasks of extremely low contrast and small size | 1500 |