APL.0084.09.05 Ceiling lamp Aployt Alba
https://omnilux.ru/catalog/products/apl-0084-09-05-svetilnik-potolochnyy-aployt-alba/ 

Dimensions
Weight, kg 0.2000
Rotatable light source No
Length and width of outer part Diameter 55 mm
Cutting hole depth 70 mm
Cutting hole size Diameter 50 mm
Packing width (mm) 100
Packing height (mm) 80
Packing length (mm) 100
Materials and color
Armature material Aluminum
Armature color White
Shade material Acrylic
Shade color White