With a diameter of 500 mm, this pendant lamp is the ideal solution for illuminating the kitchen or dining area in both residential and office spaces. The body of the luminaire is presented in black and white and is made in the shape of a hemisphere. Thanks to the rounded outlines, the lamp looks minimalistic, but not strict. The body of the luminaire is attached to the ceiling bowl with a power cable and three cables.
High luminous flux (1900 lm) and color rendering index (CRI>90) provide bright and high-quality lighting.

Case dimensions: Ø500×250 mm
Hanging bowl dimensions: Ø200×35 mm
Color temperature: 3000, 4000K
Luminous flux: 1900 lm
Color rendering index: CRI>90
Degree of dust and moisture protection: IP20
Beam Angle: 100°
Power Consumption: 30W
Power supply: 230 V
Body color: white, black

https://arlight.ru/search/index.php?q=SP-RESTO-HANG-R500-30W 

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