C150 and C180 Lederam luminaires from Enzo Catellani & Logan Smith.
https://www.catellanismith.com/en/lederam-c150 
https://www.catellanismith.com/en/lederam-c180 

The materials library contains 4 options (see preview):
white / gold
white / white
black / gold / black
black / copper / black

Dimensions of the luminaire C150:
The diameter is 500 mm, the height is 26 cm.
Number of polygons: 1629.

Dimensions of the luminaire C180:
The diameter is 800 mm, the height is 35 cm.
Number of polygons: 1629.

Other models of the Lederam series can be downloaded from the links
https://3dsky.org/3dmodels/show/lederam_manta_cws1_1 
https://3dsky.org/3dmodels/show/lederam_manta_s1_1 
https://3dsky.org/3dmodels/show/lederam_manta_s2_2 

Stream with TurboSmooth is open.
Render: V-Ray 3.4
Formats: 3Ds Max 2013, OBJ.