How the Room Lighting Calculator works
Area is multiplied by target lux and divided by a utilization factor; LED wattage uses selected efficacy.
How to use this tool
- Collect accurate values for room length, room width, target illuminance.
- Enter measurements in the displayed units and select the choices that match this project.
- Select Calculate / Generate, then compare the outputs with the stated Room Lighting Calculator method.
- Apply the result only after checking product specifications and real site conditions.
Example calculation or use case
For a worked Room Lighting Calculator example, use Room length = 5 m, Room width = 4 m, Target illuminance = 200 lux, Utilization factor = 0.8. The tool then applies this method: Area is multiplied by target lux and divided by a utilization factor; LED wattage uses selected efficacy.