Lux To Lumen Formula:
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Lux to lumen conversion calculates the total luminous flux (lumens) from illuminance (lux) and area. Lux measures illuminance per unit area, while lumens measure total luminous flux.
The calculator uses the formula:
Where:
Explanation: This formula converts illuminance (lux) to total luminous flux (lumens) by multiplying by the area over which the light is distributed.
Details: This conversion is essential for lighting design, determining the appropriate light source output for a given space, and ensuring adequate illumination levels for various applications.
Tips: Enter illuminance in lux and area in square meters. Both values must be positive numbers greater than zero.
Q1: What is the difference between lux and lumens?
A: Lux measures illuminance (light intensity per unit area), while lumens measure total luminous flux (total light output).
Q2: When would I need to convert lux to lumens?
A: When you know the desired illuminance level for a space and need to determine the total light output required from light sources.
Q3: Can this formula be used for any light source?
A: Yes, the formula applies to all light sources as it's a fundamental relationship between illuminance, luminous flux, and area.
Q4: What are typical lux requirements for different spaces?
A: Office spaces typically require 300-500 lux, while detailed work areas may need 750-1000 lux. Outdoor areas may require 20-100 lux.
Q5: Does the formula account for light loss factors?
A: No, this basic formula does not account for factors like reflectance, maintenance factors, or light distribution patterns which should be considered in professional lighting design.