installed lamp flux density, <for an interior lighting installation>
quotient of the sum of the individually rated luminous fluxes of the lamps of an installation and the floor area
Note 1 to entry: The installed lamp flux density is expressed in lumen per square metre (lm·m−2).
Note 2 to entry: This entry was numbered 845-09-47 in IEC 60050-845:1987.
Note 3 to entry: This entry was numbered 17-588 in CIE S 017:2011.