Lustrin double wall lamp by LUCE TU
https://www.archiproducts.com/en/%D0%BF%D1%80%D0%BE%D0%B4%D1%83%D0%BA%D1%82%D1%8B/luce-tu/%  D0%BD%D0%B0%D1%81%D1%82%D0%B5%D0%BD%D0%BD%D1%8B%D0%B8-%D1%81%D0%B2%D0%B5%D1 %82%D0%B8%D0%BB%D1%8C%D0%BD%D0%B8%D0%BA-lustrin-lw02_524407
Dimensions: 137*1160*400 mm
in two materials

Lustrin single wall lamp by LUCE TU
https://www.archiproducts.com/en/%D0%BF%D1%80%D0%BE%D0%B4%D1%83%D0%BA%D1%82%D1%8B/luce-tu/%  D0%BD%D0%B0%D1%81%D1%82%D0%B5%D0%BD%D0%BD%D1%8B%D0%B8-%D1%81%D0%B2%D0%B5%D1 %82%D0%B8%D0%BB%D1%8C%D0%BD%D0%B8%D0%BA-lustrin-lw01_524374
Dimensions: 134*116*350mm
in two materials

Polys: 38,432
Verts: 38,846

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