Leimu lamp large
Product Link:
https://www.iittala.com/collections/iittala/leimu-lamp-300-x-200-mm-grey/p/k365069 
https://www.iittala.com/collections/iittala/leimu-lamp-380-x-250-mm-grey/p/k365068 

Dimensions:
W x D x H (mm)
200 x 200 x 300
250 x 250 x 380

The archive contains:
Preview
Textures (if needed)
Materials
3D model – formats (MAX_14: V-ray Corona OBJ)

My models https://3dsky.org/users/cg_room 
Good luck with your projects!