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abstraction > mathematical concept > unit > SI unit > derived SI unit > named derived SI unit > lumen
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lumen comparison table
Subject is an instance of has base unit has unit represent is a kind of has symbol
named derived SI unit defined in terms of the seven SI base units via a system of quantity equationsdefined in terms of derived SI unit via a system of quantity equations derived SI unit 
lumennamed derived SI unitm2·m-2·cd = cdcd·srluminous flux lm

Next named derived SI unitlux    Upnamed derived SI unit    Previous named derived SI unitkatal