These lamps are in Kehtna, Estonia. Other users from Estonia, I dare you to publish pictures here too. Made in Estonia by KEK In my opinion, these lamps are even more uglier than most hated Malagas.
Sry i haven't seen any catalogues but i keep my eyes open. Only one type is sure (picture above), even that fixture has same ballast as can of sardines.
It is russian light fixture from 1950-1960's with E27 socket and max 300W incadescent light bulb, no idea of type and make. I never seen those working actually, as the water can reach the socket . On a picture, it is just mounted on a insulator holder with a piece of metal.