The recessed downlight of the DROP series is a universal interior solution.
Due to the increased degree of dust and moisture protection (IP54), this luminaire can be used to create high-quality basic lighting not only in the living room, office lobby or a small store, but also in wet areas - bathrooms and toilets.
Downlight has a comfortable glow due to the light source recessed into the body, and a high color rendering index (CRI> 90) ensures the most natural perception of colors and shades in the interior.
The laconic design will not draw too much attention to itself: around the circumference of the luminaire is framed by a thin 5 mm frame.

Dimensions: Ø84×49 mm
Color temperature: 3000, 4000K
Luminous flux: 610, 660 lm
Beam Angle: 85°
Color rendering index: CRI>90
Degree of dust and moisture protection: IP54
Power Consumption: 8W
Power supply: 230 V
Body color: white, black

https://arlight.ru/search/?q=MS-DROP-BUILT-R84-8W 

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