There are two types of sconces in the scene, very similar but different
1. Bra Halo aka Fia
2. Sconce Loft4You aka Top Brass Ring
There are no additional plugins.
The model is created in millimeters
The models are named by their proper names; when downloading, you can select the option you are interested in.
The model is configured for Corona renderer AND V-Ray

Halo Dimensions
Height 270mm
Width 250mm
Depth 160mm
https://blesslight.ru/collection/bra/product/bra-fia-w2319 

https://3000k.ru/catalog/nakladnye-nastennye-svetilniki/acb-iluminacion-halo-16-3815-nastennyy-svetilnik-tekh-zoloto-opal-svetodiod-1x5vt-3000k-370lm-vstroe/?utm_referrer=https  %3A%2F%2Flens.google.com%2F

Dimensions Loft4You
Height 310mm
Width 270mm
Depth 170mm
https://loft4you.ru/catalog/top_brass_ring 
https://www.amazon.com/Bathroom-Century-Headboard-Lighting-Fixture/dp/B0CBK22HL2 

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