EntityQ1805331· pop 13· linked from 57 articleslangleySign in to saveunit of energy distribution over an areaConnectionssquare metreEntityInternational Standard Book NumberEntityInternational System of UnitsEntityjouleEntitysmall calorieEntitysunlightEntitySamuel LangleyEntitysystem of unitsEntitysolar constantEntitysolar irradianceEntityheat flux densityEntityradiant exposureEntityCategoriesNon-SI metric unitsUnits of measurement