Sconce from Romatti GOLDEN CROWNS collection
It is also available in Garda Decor and other stores.
There are 2 types of sconces in the scene, as in the preview.
The models are called by their proper names; when downloading, you can select the option you are interested in.
There are no additional plugins.
The model was created in 3ds Max 2018 and transferred to 3ds Max 2015
The model is created in millimeters

Aployt Ornella dimensions
Height: 380mm
Width: 250mm
Depth: 150mm

Aployt Ornella Duo dimensions
Height: 600mm
Width: 250mm
Depth: 150mm
https://romatti.ru/catalog/pnastennyy-svetilnik-bra-golden-crowns-by-romatti.html 

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