It’s present in the DHC-6:
EDIT:
And the Baron:
What is this weird spotlight, anyhow?
EDIT2:
Here it is in the CL-415. What is interesting is looking through the fuselage, you can see this mysterious light source:
It’s present in the DHC-6:
EDIT:
And the Baron:
What is this weird spotlight, anyhow?
EDIT2:
Here it is in the CL-415. What is interesting is looking through the fuselage, you can see this mysterious light source: