The round light for magnetic tracks MAG-ORIENT will create a clear light accent on the most important details: the body rotates 350° and tilts 90° relative to the ceiling, which is suitable for directional lighting.
At the same time, the light will be comfortable thanks to the anti-glare grille built into the case. And the high color rendering index will ensure accurate transmission of color shades. Backlighting of paintings, posters and other art objects, clothing or decorative elements will be of high quality.
Models controlled by DALI and TUYA Zigbee allow you to adjust brightness, color temperature and create lighting scenarios.

Dimensions of the light-emitting module: Ø81.5×50 mm
Color temperature: 3000, 4000 K, MIX (2700–6500 K)
Luminous flux: 620, 630, 650, 680 lm
Beam angle: 18°
Color rendering index: CRI>90
Degree of protection against dust and moisture: IP20
Power consumption: 12 W
Power supply: 48 V
Control: no control, DALI, TUYA Zigbee
Body color: black, white

https://arlight.ru/search/?q=MAG-ORIENT-POINT-R80-12W 

who works in V-Ray version 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 - what is preferable for you