Sconce from Lampatron collection ROMA
The model is created in millimeters
There are no additional plugins.
The model is configured for Corona renderer AND V-Ray

Dimensions
Height 460mm
Diameter 250mm
Depth 60mm
https://www.lampatron.ru/cat/item/design-lamps-roma/ 

For Corona render, it is recommended to install version no lower than 1.5, since the glossiness of the materials is adjusted taking into account PBR

Those who work in a V-Ray version lower than 3.1, be careful, in the materials in the BRDF section there is Microfaset GTR (GGX), if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward – whichever is preferable for you