1Lux = 1 lumen/square meter
eve ti kalkulator pa se igraj :icon_arrow: http://www.unitconversion.org/illumination/lux-to-lumens-per-square-foot-conversion.html
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eve ti kalkulator pa se igraj :icon_arrow: http://www.unitconversion.org/illumination/lux-to-lumens-per-square-foot-conversion.html
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