Dimensions:

S Ø 90 × 600 mm
M Ø 90 × 900 mm
L Ø 90 × 1200 mm

-max 2013 corona
-max 2013 vray
-obj
-mtl
-mat lab

Vray and Corona versions included

For Corona render, it is recommended to install a version of at least 1.5, since the glossiness of materials is configured with PBR in mind.

V-Ray versions are 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"

https://www.lampatron.ru/cat/item/design-lamps-heidy-l/