I found this on FB Marketplace for £20
A Grandstand Electronic Game of Invader From Space
The player has a small stick that moves the ship left and right, and a large fire button. There is also a power switch, and a level select and a start button available
The large round screen is not the whole playfield
The base of the console with ever-so slightly crusty batteries
There is an external power socket
Side profiles
The real manufacturer with a copyright date of 1980
?REDO FROM START ERROR