my WW II Automobile black out lights.

These are WW II Auto black out lights. The red one for the back of the automobile,and the clear one is for the front. They were manufactured January 1945. I came across them while cleaning out a crawl space under a rental home. They operate off of the cars electrical system . (12 volt not 6 volt). And yes they both do still work.
I believe that they were issued to the civilian population during WWII. To be used for driving during the night time hours. Somthing you don't come across everyday!