A strict linear lamp with an aluminum body in three noble shades (black, gold, titanium) is suitable for creating general lighting in interiors.
The luminaire is easily mounted on the APRIORI track using a special mount, which allows two installation options: with the optics up or down, opening up space for a variety of lighting design solutions.
A powerful stream of light passing through the matte screen provides high-quality, even illumination, and a high color rendering index ensures maximum distinction of color shades.
It is possible to control the brightness of the lamp by PWM (PWN) using a dimmer or non-addressable control when using a DALI, 0–10V or TRIAC driver.

Dimensions: 500×38×95 mm
Color temperature: 3000, 4000 K
Luminous flux: 600 lm
Beam Angle: 120°
Color rendering index: CRI>90
Dust and moisture protection degree: IP20
Power consumption: 15 W
Power: 48 V
Case color: black, gold, titanium

https://arlight.ru/search/?q=ART-APRIORI-FLAT-L500-15W 

who works in a 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 – whichever is preferable for you