Al Bundy wrote:

One kicker on the stove was once installed I go to turn on oven light.
Digital clock & timer but no light control. Look inside. No light! How
frikkin barebones can ya get?! The thing that really got me is there
was a glass panel in the door. Whe the hell good is a glass panel if
you can't see inside?! Maybe so you can see a fire or something, ya
think? I still laugh at myself for missing that one.

So you can use a flashlight without opening the door.