Construction Site & Architectural Lighting Illuminance (Lux to Lumens) & LED Fixtures Estimator
Calculate total required luminous flux (Lumens), LED floodlight fixture quantity (50W, 100W, 200W), and total electrical power load (kW) based on target Lux level (OSHA / EN 12464 standards) and site area.
Total LED Floodlight Fixtures Required
Calculator Inputs
Total LED Floodlight Fixtures Required
Total Luminous Flux Required (Lumens)
Total Electrical Power Load (kW)
Actual Delivered Illuminance (Lux)
Total Installed Fixtures Lumens
Lighting Power Density (W/m²)
Target vs. Actual Delivered Illuminance (Lux) Breakdown
Calculations incorporate industry standard Light Loss Factor (LLF / Maintenance Factor = 0.80) and Coefficient of Utilization (CU = 0.65).
All engineering calculations, structural estimates, and electrical sizing metrics are provided for preliminary estimation only. Always ensure compliance with relevant statutory building codes and occupational safety standards, verified by a certified professional engineer before practical implementation.
Calculation Methodology
Total Lumens Required = (Area sq m * Target Lux) / (CU * MF). Fixtures Count = Ceil(Total Lumens / Lumens per Fixture). Total Power Load (kW) = (Fixtures * Wattage) / 1000.
Frequently Asked Questions
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