照明是每单位区域表面上的总发光通量。它以Lux（LX）为单位。
1 br = 1 cd/m²
1 cd/m² = 1 br
例子:
将15 亮度转换为每平方米烛台：
15 br = 15 cd/m²
| 亮度 | 每平方米烛台 |
|---|---|
| 0.01 br | 0.01 cd/m² |
| 0.1 br | 0.1 cd/m² |
| 1 br | 1 cd/m² |
| 2 br | 2 cd/m² |
| 3 br | 3 cd/m² |
| 5 br | 5 cd/m² |
| 10 br | 10 cd/m² |
| 20 br | 20 cd/m² |
| 30 br | 30 cd/m² |
| 40 br | 40 cd/m² |
| 50 br | 50 cd/m² |
| 60 br | 60 cd/m² |
| 70 br | 70 cd/m² |
| 80 br | 80 cd/m² |
| 90 br | 90 cd/m² |
| 100 br | 100 cd/m² |
| 250 br | 250 cd/m² |
| 500 br | 500 cd/m² |
| 750 br | 750 cd/m² |
| 1000 br | 1,000 cd/m² |
| 10000 br | 10,000 cd/m² |
| 100000 br | 100,000 cd/m² |
规则