<xs:simpleType name="LightExposureUom">
  <xs:restriction base="eml:UomEnum">
    <xs:enumeration value="footcandle.s">
      <xs:annotation>
        <xs:documentation>footcandle second</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="lx.s">
      <xs:annotation>
        <xs:documentation>lux second</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
  </xs:restriction>
</xs:simpleType>