My other models:
https://3dsky.org/users/o-wal/models 

Product description
Ceiling lamp and handmade glass elements. Led lights.
Design STC Studio
Link to the manufacturer:
https://www.cattelanitalia.com/en/products/486790A1-A06A-492E-9110-39DC923B76FB?c=new 

OVERALL DIMENSIONS:
64x64x120
90x90x120

XForm: Yes
Model Parts: 2
Render: Corona
Formats: 3Ds Max 2014 FBX

The stack is not collapsed.
For Corona render it is recommended to install a version not lower than 1.5
since the glossiness of the materials is customized to fit the PBR.