Symbol 5320 from IEC 60417 - Title/Meaning: Indirect lighting Function/description: To identify a control for indirect lighting if a distinction from the symbol 5012 is necessary.
Additional information: 
Published in: Supplement G, 1985
Own work using: iso.org/obp/graphics/grs/d3142f74-4d0a-428b-b0ef-47475b466f8c 200.png
Vectorization:  Mrmw