Cord wall lamp by Lampatron
in two colors and three sizes
https://www.lampatron.ru/cat/item/design-lamps-cord/ 
Dimensions:
80*40*480mm
80*40*540mm
80*40*600mm

All objects are attached have logical names of materials and textures
Light sources – CoronaLight Mtl and Vraylight Mtl
TurboSmooth open

For Corona render it is recommended to install a version of at least 1.5 since the glossiness of materials is configured taking into account PBR

Those who work in V-Ray versions 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 suits you best