Symbol 1421A from ISO 7000 - Title/Meaning: Interior compartment illumination; interior (dome) light 
Function/description: To identify the control that operates the interior compartment illumination. To indicate the operational status of the dome light.
Own work using: iso.org/obp/graphics/grs/0a8b5090-2548-4e33-a529-1f34aad3d997 200.png
Vectorization:  Mrmw