<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">lumens</topic></authority><related type="broader"><topic>illuminance</topic></related><variant type="other"><topic>lumen</topic></variant> <note xml:lang="en"><![CDATA[ Use to refer to units of luminous flux. It is equal to the amount of flux emitted by one candela into a cone having the solid angle of one steradian. ]]></note></mads>