The formula to calculate lumens (\(L\)) is:

\[ L = \frac{E_{av} \times L_{room} \times W_{room}}{0.32} \]

Where:

- \(L\) is the lumens (lm).
- \(E_{av}\) is the average illuminance in lux (lx).
- \(L_{room}\) is the length of the room in meters.
- \(W_{room}\) is the width of the room in meters.

Average illuminance is the total luminous flux incident on a surface, per unit area. It is measured in lux (lx).

Lumens measure the total amount of visible light emitted by a source. It is measured in lumens (lm).

Let's assume the following values:

- Average Illuminance = 300 lux
- Length of Room = 5 m
- Width of Room = 4 m

Using the formula for lumens:

\[ L = \frac{300 \times 5 \times 4}{0.32} \approx 18750 \, \text{lm} \]

The lumens are approximately 18750 lm.

Average Illuminance (lux) | Length (m) | Width (m) | Lumens (lm) |
---|---|---|---|

300 | 2 | 3 | 5,625.0000 |

100 | 2 | 3 | 1,875.0000 |

750 | 2 | 3 | 14,062.5000 |

300 | 2 | 3 | 5,625.0000 |

100 | 2 | 3 | 1,875.0000 |

300 | 2 | 3 | 5,625.0000 |

150 | 2 | 3 | 2,812.5000 |

550 | 2 | 3 | 10,312.5000 |

500 | 2 | 3 | 9,375.0000 |

500 | 2 | 3 | 9,375.0000 |

150 | 2 | 3 | 2,812.5000 |

200 | 2 | 3 | 3,750.0000 |

200 | 2 | 3 | 3,750.0000 |

500 | 2 | 3 | 9,375.0000 |

700 | 2 | 3 | 13,125.0000 |

800 | 2 | 3 | 15,000.0000 |

1100 | 2 | 3 | 20,625.0000 |