Note that this cover shows the name of the manufacturer (top arc), as written in mirror writing. At first I thought "illogical, creating a sign with a mirror script". But the answer is simpler: since the lid is modular, and different parts of it can be removed or added (as you can see the label is missing at the bottom of the lid), so in the lid it is the label with the name of the manufacturer, designed for the lower arc of the lid but was placed on the upper arc.
Translation of the text on the cover: A. Telitmacher & Sons Ltd. (mirror writing) The emblem of the city of Givatayim Lighting 2001 Standard mark of the Standards Institute of Israel