| Unit | lumen |
|---|---|
| Symbol | lm |
| Quantity | luminous flux |
| Defining Resolution |
CGPM Resolution 12 (1960) |
| Unit Type | Named SI derived unit |
| Unit expressed in terms of SI base units | $$\text{cd}^{}\ \ \text{sr}^{}\ \ $$ |
| Unit expressed in terms of other SI units | $$\text{cd}^{}\ \ \text{sr}^{}\ \ $$ |
